Chapter 21. 21·1–21·3 The circulatory system is the chief route of distribution in animals.

Show What You Know - Self Quiz
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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 21·1–21·3 The circulatory system is the chief route of distribution in animals by answering the following questions.

1.

1. Which of the following is the name of the fluid in an insect’s open circulatory system?

A.
B.
C.
D.
E.

Correct. (See section 21·2 Circulatory systems can be open or closed.)
Incorrect. (See section 21·2 Circulatory systems can be open or closed.)

2.

2. Organisms with an open circulatory system:

A.
B.
C.
D.
E.

Correct. (See section 21·2 Circulatory systems can be open or closed.)
Incorrect. (See section 21·2 Circulatory systems can be open or closed.)

3.

3. As vertebrates diversified, they evolved variations in the structure of the heart, primarily in the number of separate chambers. Which of the following does NOT match the organism with the number of chambers found in its heart?

A.
B.
C.
D.
E.

Correct. (See section 21·3 Vertebrates have several different types of closed circulatory systems.)
Incorrect. (See section 21·3 Vertebrates have several different types of closed circulatory systems.)

4.

4. Amphibians and reptiles have very similar circulatory systems. Which of the following is a FALSE statement about their systems?

A.
B.
C.
D.
E.

Correct. (See section 21·3 Vertebrates have several different types of closed circulatory systems.)
Incorrect. (See section 21·3 Vertebrates have several different types of closed circulatory systems.)

5.

5. When blood leaves the right ventricle of the mammalian heart, to which location does it flow next?

A.
B.
C.
D.
E.

Correct. (See section 21·3 Vertebrates have several different types of closed circulatory systems.)
Incorrect. (See section 21·3 Vertebrates have several different types of closed circulatory systems.)

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