Which of the following statements about the life cycle of a crab is true?
a. Most species of crab are hermaphrodites
b. A female crab hides fertilized eggs under a rock in a sheltered spot and guards them until they hatch.
c. A crab larva will molt as it grows.
d. Young crabs look like miniature adults as soon as they hatch from their eggs.
c
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When a cone cell is stimulated by light, what will occur at the cell membrane?
Vision differs from the other senses in two interesting ways. Although most sensory receptor neurons are depolarized when the receive a stimulus, rod and cone cells become hyperpolarized when they receive light. When hyperpolarized, they stop releasing inhibitory neurotransmitter and allow the bipolar cells to fire. A second unusual aspect is that the vision circuit seems to be organized "backwards" -- the light must pass through the layers of ganglion and bipolar cells to reach the rods and cones A. excitation B. inhibition C. an action potential D. hyperpolarization E. depolarization
The elongation of stems is stimulated by
A. auxin and gibberellin. B. auxin only. C. ethylene only. D. auxin and ethylene. E. gibberellin only.
________ provides the energy required for voluntary muscle contraction in an individual's body
Fill in the blank(s) with correct word
How many chromatids would you expect to find in a dividing diploid cell whose haploid number is 5 at that stage of the mitotic cycle when the nuclear membrane disappears?
What will be an ideal response?