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Multiple Choice Quiz
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1

The transport system found in protozoa that moves gases is
A)simple diffusion.
B)a gastrovascular cavity.
C)hemolymph.
D)an open circulatory system.
2

Coelomic fluid is used to transport gases in
A)rotifers.
B)gastrotrichs.
C)nematodes.
D)all of the above (a-c).
3

The annelids, such as the earthworm, have a(n) __________ circulatory system.
A)closed
B)open
C)coelomic
D)hemolymph
4

All of the following are granulocytes except
A)eosinophils.
B)basophils.
C)neutrophils.
D)monocytes.
5

Which of the following is not a lymphocyte?
A)monocyte
B)B cell
C)T cell
D)platelet
6

A bony fish has a __________-chambered heart.
A)one
B)two
C)three
D)four
7

A four-chambered heart is first seen in
A)bony fishes.
B)amphibians.
C)reptiles.
D)crocodilians.
8

The pacemaker of a mammalian heart is the
A)AV node.
B)SA node.
C)bundle of His.
D)Purkinje fibers.
9

Most aquatic invertebrates carry out gas exchange
A)by diffusion.
B)with lungs.
C)by gills.
D)with tracheal systems.
10

Arachnids possess
A)trachea.
B)book lungs.
C)neither a nor b.
D)both a and b.
11

Land snails breathe by way of
A)trachea.
B)book lungs.
C)pulmonate lungs.
D)all of the above (a-c).
12

Amphibians and some reptiles respire by
A)cutaneous body surface exchange.
B)external filamentous gills.
C)internal lamellar gills.
D)all of the above.
13

The type of respiration that allows an organism to exchange gases simultaneously with both air and water is termed
A)cutaneous exchange.
B)bimodal breathing.
C)gill exchange.
D)lung exchange.
14

Which of the following has the greatest rate of oxygen consumption?
A)frogs
B)humans
C)pulmonates
D)birds
15

Hemoglobin is the most commonly occurring respiratory pigment in molluscs and certain arthropods, as well as most vertebrates.
A)True
B)False
16

In the respiratory system, oxygen and carbon dioxide always diffuse from areas of low concentration to areas of high concentration.
A)True
B)False
17

As animals became larger and acquired higher metabolic rates, simple diffusion became increasingly inadequate as a means of delivering oxygen to the tissues.
A)True
B)False
18

The site of gas exchange within the blood in mammals is the alveolus.
A)True
B)False
19

The most common respiratory pigments in animals are hemoglobin, hemocyanin, hemerythrin, and chlorocruorin.
A)True
B)False
20

During expiration in a human, the diaphragm relaxes.
A)True
B)False





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