_____ tissue(s) is(are) found in the walls of stomach and intestines; its(their) contractions are slow and involuntary.
Fill in the blank(s) with the appropriate word(s).
Smooth muscle
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Which animals serve as a reservoir for cholera-causing bacteria?
a. aquatic birds b. copepods c. fish d. humans e. algae
The role of the antenna complex in a photosystem is to
A. capture photons from sunlight. B. generate glucose. C. transfer excited electrons to the primary electron acceptor. D. generate NADPH.
According to the theory of common descent, how should each species on Earth today compare?
A) They should look very similar to all other species. B) They should not have ancestors in common with members of other species. C) They should have a single ancestor in common. D) They should have DNA that is mostly unique from other species.
Eukaryotic cilia and flagella:
A) may also act as receptors for hormones. B) are both involved in sweeping the lungs clean of foreign matter. C) occur in large numbers on the surface of the cell. D) are only found in single-celled organisms. E) both have microtubules forming their underlying structure.