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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 features of mammalian skin 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) | humans. |
| 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 tegument 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 |