Zoology, 8th Edition (Miller)

Chapter 23: Protection, Support, and Movement

Quiz



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.
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
3.

The supportive tissue in the vertebrate skeleton consists of
A)cartilage.
B)bone.
C)muscle.
D)both a and b.
4.

The outer protein coat of many protozoans is called the
A)tegument.
B)pellicle.
C)epidermis.
D)dermis.
5.

The outer layer of flukes and tapeworms is the
A)tegument.
B)pellicle.
C)epidermis.
D)shell.
6.

__________ is the vertebrate integument.
A)Dermis
B)Epidermis
C)Skin
D)Hypodermis
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.
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).
9.

Modifications of the epidermis include
A)nails.
B)hair.
C)horns.
D)all of the above (a-c).
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)
11.

Which kind of animal does not possess a hydrostatic skeleton?
A)jellyfish
B)squid
C)slug
D)roundworm
12.

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)
13.

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.
14.

With the exception of the __________ , locomotor cilia and flagella occur in every animal phyla.
A)protozoa
B)molluscs
C)arthropods
D)aschelminths
15.

The predominant muscle type in many invertebrates is
A)skeletal.
B)smooth.
C)cardiac.
D)both a and b.
16.

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.
17.

As a zoologist, you would look for looping movement in
A)earthworms.
B)polychaetes.
C)echinoderms.
D)leeches.
18.

The functional unit in a skeletal muscle is called a
A)Z-line.
B)sarcomere.
C)actin filament.
D)myosin filament.
19.

Which of the following terms refers to an actual cell (not just a smaller component of a cell)?
A)muscle fiber
B)myofibril
C)thick filament
D)myosin
20.

The sarcoplasmic reticulum releases this ion which binds to troponin and facilitates muscle contraction.
A)Na+
B)K+
C)Ca2+
D)Cl-
21.

Nerves control skeletal muscle contraction.
A)True
B)False
22.

The power behind muscular movements in both invertebrates and vertebrates is connective tissue.
A)True
B)False
23.

Amoeboid movement does not involve muscles.
A)True
B)False
24.

The most familiar endoskeletons, both cartilaginous and bony, first appeared in the vertebrates.
A)True
B)False
25.

The endoskeletons of sponges consist of mineral spicules.
A)True
B)False
26.

Animals have three types of skeletons: hydrostatic skeletons, exoskeletons, and endoskeletons.
A)True
B)False
27.

A tegument is the external covering of an animal.
A)True
B)False
28.

Skin is the vertebrate integument.
A)True
B)False
29.

Bone cells are also known as chondrocytes.
A)True
B)False
30.

Myosin occurs as thick filaments.
A)True
B)False
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