Refer to Figure 31-5. Which structure is involved in respiration?
A. 5
B. 6
C. 7
D. 8
E
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Which animal(s) can get needed oxygen by diffusion of the gas across a body surface and can distribute oxygen without the need of a specialized circulatory system?
A. fish B. flatworms C. fish and flatworms D. sea anemones E. sea anemones and flatworms
The euphotic zone is confined to the:
What will be an ideal response?
A cell in G0 state ____
a. is actively growing before cell division begins b. has a cleavage furrow and the cytoplasm is beginning to divide c. is actively replicating chromosomes d. is in cytokinesis e. has entered a resting stage and is not actively dividing
Place each of the following terms with the correct statement.coevolutiondefensive colorationcamouflagesecondary chemical compoundsBatesian mimicryIs the process by which different kinds of organisms adjust to one another by genetic change over long periods of time.
Fill in the blank(s) with the appropriate word(s).