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1 |  |  The integument of most multicellular invertebrates consists of a |
|  | A) | multilayer of cells. |
|  | B) | layer called the skin. |
|  | C) | complex of a variety of chemicals, fibers, cellulose, or chitin. |
|  | D) | single layer of cells. |
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2 |  |  Animals have three types of skeletons. Which of the following is not one of the three types? |
|  | A) | fluid hydrostatic |
|  | B) | rigid exoskeleton |
|  | C) | fluid exoskeleton |
|  | D) | rigid endoskeleton |
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3 |  |  The supportive tissue in the vertebrate skeleton consists of |
|  | A) | cartilage. |
|  | B) | bone. |
|  | C) | muscle. |
|  | D) | both a and b. |
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4 |  |  The outer protein coat of many protozoans is called the |
|  | A) | tegument. |
|  | B) | pellicle. |
|  | C) | epidermis. |
|  | D) | dermis. |
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5 |  |  The outer layer of flukes and tapeworms is the |
|  | A) | tegument. |
|  | B) | pellicle. |
|  | C) | epidermis. |
|  | D) | shell. |
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6 |  |  __________ is the vertebrate integument. |
|  | A) | Dermis |
|  | B) | Epidermis |
|  | C) | Skin |
|  | D) | Hypodermis |
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7 |  |  Where would you find skin that is multilayered and contains mucous and sensory cells, and placoid scales called denticles? |
|  | A) | In the skin of body fishes. |
|  | B) | In the skin of cartilaginous fishes. |
|  | C) | In the skin of jawless fishes. |
|  | D) | In the skin of birds. |
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8 |  |  The notable feature(s) of mammalian skin is(are) |
|  | A) | hair. |
|  | B) | a greater variety of epidermal glands than in any other vertebrate class. |
|  | C) | a highly stratified, cornified epidermis. |
|  | D) | all of the above (a-c). |
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9 |  |  Modifications of the epidermis include |
|  | A) | nails. |
|  | B) | hair. |
|  | C) | horns. |
|  | D) | all of the above (a-c). |
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10 |  |  What type of skeleton would you find in earthworms and sea anemones? |
|  | A) | fluid hydrostatic |
|  | B) | rigid exoskeleton |
|  | C) | rigid endoskeleton |
|  | D) | all of the above (a-c) |
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11 |  |  What type of skeleton would you find in an arthropod? |
|  | A) | fluid hydrostatic |
|  | B) | rigid exoskeleton |
|  | C) | rigid endoskeleton |
|  | D) | all of the above (a-c) |
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12 |  |  Cartilage is a major supportive tissue. It makes up the major skeletal component in all of the following except |
|  | A) | gastropods. |
|  | B) | jawless fishes. |
|  | C) | rays. |
|  | D) | sharks. |
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13 |  |  With the exception of the __________ , locomotor cilia and flagella occur in every animal phyla. |
|  | A) | protozoa |
|  | B) | molluscs |
|  | C) | arthropods |
|  | D) | aschelminths |
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14 |  |  The predominant muscle type in many invertebrates is |
|  | A) | skeletal. |
|  | B) | smooth. |
|  | C) | cardiac. |
|  | D) | both a and b. |
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15 |  |  Flatworms, some cnidarians, and the gastropod molluscs move by means of waves of activity in the muscular system that are applied to the substrate. This type of movement is called. |
|  | A) | pedal locomotion. |
|  | B) | looping movement. |
|  | C) | water-vascular movement. |
|  | D) | walking. |
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16 |  |  As a zoologist, you would look for looping movement in |
|  | A) | earthworms. |
|  | B) | polychaetes. |
|  | C) | echinoderms. |
|  | D) | leeches. |
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17 |  |  The functional unit in a skeletal muscle is called a |
|  | A) | Z-line. |
|  | B) | sarcomere. |
|  | C) | actin filament. |
|  | D) | myosin filament. |
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18 |  |  Nerves control skeletal muscle contraction. |
|  | A) | True |
|  | B) | False |
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19 |  |  The power behind muscular movements in both invertebrates and vertebrates is connective tissue. |
|  | A) | True |
|  | B) | False |
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20 |  |  Amoeboid movement does not involve muscles. |
|  | A) | True |
|  | B) | False |
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21 |  |  The most familiar endoskeletons, both cartilaginous and bony, first appeared in the vertebrates. |
|  | A) | True |
|  | B) | False |
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22 |  |  The endoskeletons of sponges consist of mineral spicules. |
|  | A) | True |
|  | B) | False |
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23 |  |  Animals have three types of skeletons: hydrostatic skeletons, exoskeletons, and endoskeletons. |
|  | A) | True |
|  | B) | False |
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24 |  |  A integument is the external covering of an animal. |
|  | A) | True |
|  | B) | False |
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25 |  |  Skin is the vertebrate integument. |
|  | A) | True |
|  | B) | False |
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