A spaceship is designed to support animal life for a multiyear voyage to the outer planets of the solar system. Plants will be grown to provide oxygen and to recycle carbon dioxide. Since the spaceship will be too far from the sun for photosynthesis, an artificial light source will be needed. Suppose a plant has a unique photosynthetic pigment and the leaves of this plant appear to be reddish yellow. What wavelengths of visible light are absorbed by this pigment?
A) red and yellow
B) blue and violet
C) green and yellow
D) blue, green, and red
Ans: B) blue and violet
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The type of movement of molecules that is specific and passive, and which becomes saturated if all of the protein carriers are in use is
A. exocytosis. B. facilitated diffusion. C. active transport. D. endocytosis. E. osmosis.
Areas of the body such as the lips or fingers are represented by ____ regions of the somatosensory cortex; the arms
and legs are represented by relatively _____ regions of the somatosensory cortex.
a. large; small b. small; large c. motor; sensory d. sensory; motor e. cerebellum; brain stem
The lateral line system in elasmobranchs is used to detect which of the following?
1.Electric currents 2.Odors 3.Sounds 4.Vibrations
Which area of the cerebrum deals with learned patterns or motor skills?
a. Broca's area b. Wernicke's area c. prefrontal cortex d. premotor cortex e. hippocampus