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True/False
Indicate whether the sentence or statement is true
or false.
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1.
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A
tissue is a group of dissimilar cells that are organized into a functional unit.
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2.
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The
development of a particular animal’s body plan depends on the animal's environment, rather than
on the genetic information it carries.
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3.
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Flatworms are bilaterally symmetrical and
cephalized.
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4.
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The
fluid in the body cavity of an animal acts as a medium of transport for nutrients and
wastes.
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5.
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All
chordates retain their postanal tail in their adult life.
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6.
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Most
invertebrates have kidneys that filter waste products from the blood.
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7.
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Terrestrial animals have a protective outer covering that helps prevent excessive
water loss.
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8.
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Segmentation is evident in vertebrates in the repeating bony units of their backbones
and ribs.
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9.
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During spiral cleavage, each cell of the blastula rests directly above or below an
adjacent cell.
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10.
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In a
cnidarian, endoderm forms the outer tissue and nervous system.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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11.
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A
group of similar cells organized into a functional unit is called a. | a nervous
system. | c. | a
tissue. | b. | specialized cells. | d. | an organ. | | | | |
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12.
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Most
animals have a head that is located at the ____ end of their body and a tail that is located at the
____ end of their body. a. | ventral; dorsal | c. | anterior; posterior | b. | dorsal;
ventral | d. | posterior;
anterior | | | | |
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13.
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Refer
to the illustration above. The organism labeled “B” in the diagram a. | is
asymmetrical. | c. | exhibits radial
symmetry. | b. | is bilaterally symmetrical. | d. | has reverse symmetry. | | | | |
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14.
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Refer
to the illustration above. The organism labeled “A” in the diagram a. | has no
symmetry. | c. | exhibits radial
symmetry. | b. | is bilaterally symmetrical. | d. | has reverse symmetry. | | | | |
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15.
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Which
of the following is found in vertebrates but not in invertebrates? a. | dorsal nerve
cord | c. | three germ
layers | b. | coelom | d. | bilateral symmetry | | | | |
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16.
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A
characteristic shared by all chordates at some stage of their development is a. | a dorsal hollow
nerve cord. | c. | pharyngeal
pouches. | b. | a notochord. | d. | All of the above | | | | |
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17.
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Which
of the following is not a characteristic of the largest phylum of invertebrates, the
arthropods? a. | segmentation | c. | closed
circulatory system | b. | exoskeleton | d. | digestive tract | | | | |
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18.
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The
acoelomate body type is exemplified by a. | flatworms. | c. | mollusks. | b. | roundworms. | d. | annelids. | | | | |
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19.
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Which
of the following is an incorrect match? a. | ectoderm—nervous system | c. | endoderm—muscular system | b. | mesoderm—skeletal system | d. | endoderm—digestive system | | | | |
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The
diagrams below are cross sections of three types of animal bodies.
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20.
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Refer
to the illustration above. Humans have the type of body cavity shown in diagram a. | “A.” | c. | “C.” | b. | “B.” | d. | None of the above | | | | |
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