Tổng hợp đề thi thử môn Tiếng Anh có lời giải chi tiết (Đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

The more challenging the exercises are,……………….we feel

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

3 August 1998, the day on ………… my sister was born, is the first day I remember.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

If your mobile phone ………………… to get water in it, it’ll stop working.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

It was lovely ………………… you to invite me to your birthday meal.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

Does Mr.Ba bring his farm……………. to the local market every day?

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

It’s a good idea in theory, but it’s going to be hard to put it into ………………….

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

A number of young teachers nowadays………themselves to teaching disadvantaged children.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

Before you started cooking, you should gather together all the necessary…………

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

At first he didn’t agree, but in the end we managed to bring him …… to out point view.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

His business is growing so fast that he must take ………………… more workers.

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Let’s meet outside the theatre.

………………….

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Customer: …………………..

Salesman: It’s over there, next to the dry fruit section.

Mark the letter A, B, C, or D to indicate the phrase that is CLOSEST in meaning to the underlined ones.

When you cross the street, be careful and be on the alert for the bus.

Mark the letter A, B, C, or D to indicate the phrase that is CLOSEST in meaning to the underlined ones.

He seems to make the same mistake over and over again.

Mark the letter A, B, C, or D to indicate the phrase that is OPPOSITE in meaning to the underlined ones.

Because Jack defaulted on his loan, the bank took him to court

Mark the letter A, B, C, or D to indicate the phrase that is OPPOSITE in meaning to the underlined ones.

In the final match between Liverpool and Manchester United, viewers witnessed the deadly strike’s 11th goal of the season.

Mark the letter A, B, C, or D on your answer sheet to indicate sentence that is similar in meaning to the given one

"Leave my house now or I'll call the police!" shouted the lady to the man.

Mark the letter A, B, C, or D on your answer sheet to indicate sentence that is similar in meaning to the given one

He last had his eyes tested ten months ago.

Mark the letter A, B, C, or D on your answer sheet to indicate sentence that is similar in meaning to the given one

"You should have finished the report by now," John told his secretary.

Mark the letter A, B, C, or D on your answer sheet to indicate sentence that sentence that best combines each pair of sentences in the following questions

Ben made all attempts to carry out the project. Finally, he completed it with satisfactory result

Mark the letter A, B, C, or D on your answer sheet to indicate sentence that sentence that best combines each pair of sentences in the following questions

We should quickly find the solution to the problem. Otherwise, its impact on those concerned will increase

The heart has long been considered to be (31)………….feelings of love dwell. In love songs throughout the ages, love almost always goes together (32)…….the heart. The heart has continuously been viewed as the place where love begins and develops. Even the Bible gives preference to love and the heart.

The role of the heart in love must come from what happens to it when a person feels strongly (33)…….. to someone. The strong feelings (34)………the other person, especially in the early stages of a relationship, have the results that the heart starts beating faster and breathing starts speeding up.

According to psychologists, a love relationship is a situation that (35)………a lot of stress and the body reacts to this by getting ready to face the unknown. This has been called the "fight or flight" reaction, meeting danger by fighting it or running away. So with love, the heart accelerates and breathing becomes quick.

Điền ô số 31

The heart has long been considered to be (31)………….feelings of love dwell. In love songs throughout the ages, love almost always goes together (32)…….the heart. The heart has continuously been viewed as the place where love begins and develops. Even the Bible gives preference to love and the heart.

The role of the heart in love must come from what happens to it when a person feels strongly (33)…….. to someone. The strong feelings (34)………the other person, especially in the early stages of a relationship, have the results that the heart starts beating faster and breathing starts speeding up.

According to psychologists, a love relationship is a situation that (35)………a lot of stress and the body reacts to this by getting ready to face the unknown. This has been called the "fight or flight" reaction, meeting danger by fighting it or running away. So with love, the heart accelerates and breathing becomes quick.

Điền ô số 32

The heart has long been considered to be (31)………….feelings of love dwell. In love songs throughout the ages, love almost always goes together (32)…….the heart. The heart has continuously been viewed as the place where love begins and develops. Even the Bible gives preference to love and the heart.

The role of the heart in love must come from what happens to it when a person feels strongly (33)…….. to someone. The strong feelings (34)………the other person, especially in the early stages of a relationship, have the results that the heart starts beating faster and breathing starts speeding up.

According to psychologists, a love relationship is a situation that (35)………a lot of stress and the body reacts to this by getting ready to face the unknown. This has been called the "fight or flight" reaction, meeting danger by fighting it or running away. So with love, the heart accelerates and breathing becomes quick.

Điền ô số 33

The heart has long been considered to be (31)………….feelings of love dwell. In love songs throughout the ages, love almost always goes together (32)…….the heart. The heart has continuously been viewed as the place where love begins and develops. Even the Bible gives preference to love and the heart.

The role of the heart in love must come from what happens to it when a person feels strongly (33)…….. to someone. The strong feelings (34)………the other person, especially in the early stages of a relationship, have the results that the heart starts beating faster and breathing starts speeding up.

According to psychologists, a love relationship is a situation that (35)………a lot of stress and the body reacts to this by getting ready to face the unknown. This has been called the "fight or flight" reaction, meeting danger by fighting it or running away. So with love, the heart accelerates and breathing becomes quick.

Điền ô số 34

The heart has long been considered to be (31)………….feelings of love dwell. In love songs throughout the ages, love almost always goes together (32)…….the heart. The heart has continuously been viewed as the place where love begins and develops. Even the Bible gives preference to love and the heart.

The role of the heart in love must come from what happens to it when a person feels strongly (33)…….. to someone. The strong feelings (34)………the other person, especially in the early stages of a relationship, have the results that the heart starts beating faster and breathing starts speeding up.

According to psychologists, a love relationship is a situation that (35)………a lot of stress and the body reacts to this by getting ready to face the unknown. This has been called the "fight or flight" reaction, meeting danger by fighting it or running away. So with love, the heart accelerates and breathing becomes quick.

Điền ô số 35

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

With what topic is this passage primarily concerned?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

The word “fixed” in paragraph 1 is closest in meaning to

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

At 4 percent interest for the use of $1 principal, how much would one pay?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

Which of the following would be a correct expression of an interest rate as stated in the equation for computing interest?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

Most applications for loans are for

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

The word “periods” in paragraph 3 refers to

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

(1) Interest is the sum charged for borrowing money for a fixed period of time. Principal is the term used for the money that is borrowed, and the rate of interest is the percent per year of the principal charged for its use. Most of the profits for a bank are derived from the interest that they charge for the use of their own or their depositor’s money.

(2) All problems in interest may be solved by using one general equation that may be stated as follows:

Interest = Principal X Rate X Time

(3) Any one of the four quantities – that is, interest, principal, rate, or time – may be found when the other three are known. The time is expressed in years. The rate is expressed as a decimal fraction. Thus, 6 percent interest means six cents charged for the use of $1 of principal borrowed for one year. Although the time may be less than, equal to, or greater than one year, most applications for loans are for periods of less than one year. For purpose of computing interest for short periods, the commercial year or 360 days is commonly used, but when large sums of money are involved, exact interest is computed on the basis of 365 days.

A commercial year is used to compute

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

Where do protozoans probably live?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

What is protoplasm?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

To which class of protozoans do the amoebae belong?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

What is the purpose of the large nucleus in the Ciliata?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

Why are protozoans classified as animals?

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

The word “uniformly” in paragraph 4 is closest in meaning to

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

The word “they” in paragraph 3 refers to

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life. They are fantastically diverse, but three major groups may be identified on the basis of their motility. The Mastigophora have one or more long tails, which they use to project themselves forward. The Ciliata, which use the same basic means for locomotion as the Mastigophora, have a larger number of short tails. The Sarcodina, which include amoebae, float or row themselves about on their crusted bodies.

(2) In addition to their form of movement, several other features discriminate among the three groups of protozoans. For example, at least two nuclei per cell have been identified in the Ciliata, usually a large nucleus that regulates growth but decomposes during reproduction, and a smaller one that contains the genetic code necessary to generate the large nucleus.

(3) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds. Their cell demonstrates all of the major characteristics of the cells of higher animals.

(4) Many species of protozoans collect into colonies, physically connected to each other and responding uniformly to outside stimulate. Current research into this phenomenon, along with investigations carried out with advanced microscopes may necessitate a redefinition of what constitutes protozoans, even calling into question the basic premise that they have only one cell. Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified. No doubt, as the technology improves our methods of observation, better models of classification will be proposed.

Which of the following statements are NOT true of protozoans?