,Campbell Biology: Concepts and Connections, 8e (Reece et al.)
Chapter 23 Circulation
23.1 Multiple-Choice Questions
1) Which of the following statements regarding circulatory systems is true?
A) The smallest blood vessels in the body are veins.
B) A circulatory system is necessary in any animal whose body is too large or too complex for
vital chemicals to reach all parts of the body by diffusion.
C) Materials are exchanged directly between the blood and body cells.
D) Veins carry blood away from the heart to body organs and tissues.
Answer: B
Topic: 23.1
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
2) Which of the following is a function of the circulatory system?
A) transporting nerve impulses throughout the body
B) governing nutrient concentration in the blood
C) transporting nutrients to body cells
D) mounting a response to invading microorganisms
Answer: C
Topic: 23.1
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
3) The two basic types of circulatory systems that have evolved over time are
A) flat and circular.
B) open and closed.
C) series and parallel.
D) invertebrate and vertebrate.
Answer: B
Topic: 23.1
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
4) Which of the following is characteristic of the circulatory system of arthropods?
A) lack of a heart
B) lack of blood
C) lack of blood vessels
D) lack of distinction between blood and interstitial fluid
Answer: D
Topic: 23.1
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
,5) You are dissecting a "mystery animal" in biology lab and discover that it has a series of closed
blood vessels, a pair of lungs, two atria, and a single ventricle. What animal are you dissecting?
A) fish
B) frog
C) crocodile
D) bird
Answer: B
Topic: 23.2
Skill: Application/Analysis
Learning Outcome: 23.1
Global LO: 2
6) Adaptation to terrestrial life involved major evolutionary changes. The change from gill
breathing to lung breathing was accompanied by important changes in the
A) reproductive system.
B) cardiovascular system.
C) manufacture of blood cells.
D) association of blood and interstitial fluid.
Answer: B
Topic: 23.2
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
Global LO: 6
7) Which of the following animals has a single circuit of blood flow and two heart chambers?
A) salamander
B) salmon
C) snake
D) squirrel
Answer: B
Topic: 23.2
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
8) Which of the following animals has a three-chambered heart?
A) snake
B) crocodile
C) human
D) bird
Answer: A
Topic: 23.2
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
, 9) Although birds and mammals descended from different ancestors, they both have a four-
chambered heart. This is the result of
A) the simplification of the cardiovascular system.
B) the necessity for rapid movement of blood.
C) convergent evolution.
D) genetic aberrations that resulted from mistakes in somatic cell division.
Answer: C
Topic: 23.2
Skill: Knowledge/Comprehension
Learning Outcome: 23.1
10) Which of the following statements about mammalian circulatory systems is false?
A) The pulmonary circuit carries blood between the heart and the lungs.
B) The systemic circuit carries blood between the heart and the rest of the body.
C) Mammals have two atria and two ventricles in their hearts.
D) The left side of a mammal's heart sends blood to the lungs.
Answer: D
Topic: 23.3
Skill: Knowledge/Comprehension
Learning Outcome: 23.2
11) In mammals, blood returning from the head will pass through the ________ just before
entering the right atrium.
A) left atrium
B) superior vena cava
C) inferior vena cava
D) aorta
Answer: B
Topic: 23.3
Skill: Knowledge/Comprehension
Learning Outcome: 23.2
12) In mammals, which of the following vessels transports oxygenated blood from the lung back
to the heart?
A) pulmonary artery
B) pulmonary vein
C) vena cava
D) coronary artery
Answer: B
Topic: 23.3
Skill: Knowledge/Comprehension
Learning Outcome: 23.2
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