Oval body, eight dorsal plates, grazer on rocky
coasts is descriptive of
a. gastropods.
b. snails.
c. clams.
d. slugs.
e. chitons.
Answer: e
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The reason the light reactions have both cyclic and noncyclic electron pathways is
a. because the light-independent reactions require ATP and NADPH in different amounts than are generated by noncyclic electron flow. b. to ensure that ATP and NAPDH are generated in a 1:1 molar ratio. c. because only the combination of pathways can generate sufficient NADPH for the lightindependent reactions. d. to provide more electrons from water than would be released by the noncyclic pathway. e. because a single photon of light can't energize a ground state electron in photosystem II to the level necessary for transfer to photosystem I's primary electron acceptor.
Four of the five answers listed below are molluscan body features. Select the exception
a. gills b. head and foot c. mantle d. conspicuous segmentation e. radula
How do planarians survive without a circulatory system? What will be an ideal response?
Young birds see objects flying overhead and respond by crouching down into the nest and remaining still. Over time, some objects become familiar and the young birds do not crouch down. This type of learning is referred to as
A. operant conditioning. B. sensitization. C. associative learning. D. habituation.