Biology, Eighth Edition (Raven)

Chapter 43: The Animal Body and Principles of Regulation

Pre Test

1
Groups of cells that are similar in structure and function are organized into: (p .852)
A)organs.
B)organ systems.
C)germ layers.
D)tissues.
E)layers.
2
Because epithelial membranes cover all surfaces of the body, this means that: (p. 854)
A)they form a barrier to the entry and exit of substances to and from the body.
B)they must be shed regularly.
C)they are impermeable to most substances.
D)the cells are tightly bound together.
E)both a and d
3
All types of connective tissue share what common structural feature(s)? (p. 856)
A)They are comprised of fibers.
B)Their cells are widely spaced apart and they contain much extracellular material.
C)They occur in layers.
D)They originate as embryonic endoderm.
E)all of the above
4
Of the three types of muscle tissue, which are under voluntary control? (p. 858)
A)skeletal and smooth
B)skeletal, smooth and cardiac
C)skeletal only
D)smooth only
E)none
5
Neurons consist of the following parts: (p. 860)
A)neuroglea
B)dendrites, axon
C)dendrites, cell body
D)cell body, dendrites, axon
E)neuroglea, dendrites, axons
6
True of false: The body's organ systems work independently of one another. (p. 861)
A)True
B)False
7
Homeostasis: (p. 864)
A)mainly involves positive feedback mechanisms.
B)mainly involves negative feedback mechanisms.
C)maintains internal conditions within narrow limits.
D)maintains internal conditions at exact values.
E)both a and c
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