Which of the following is not involved in gravitational equilibrium?

A. otoliths
B. vestibular nerve
C. saccule
D. cupula
E. utricle


Answer: D

Biology & Microbiology

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The fourteen species of finch native to the Galapagos Islands

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In radishes, long or round are homozygous forms of an incompletely dominant gene, and oval is the phenotype of the

heterozygote. If a long radish is crossed with a round radish, give the genotypic and phenotypic ratios of the F2 generation. What will be an ideal response?

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Male mallard ducks have had emerald green head feathers and wings with metallic blue patches for hundreds of years,

whereas females have been drab, brown-feathered ducks. This phenotypic situation suggests that mallards may be an example of ____. a. directional selection b. Polyploidy c. allopatric speciation d. disruptive selection e. sexual selection

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A stretch reflex is

a. somatic. b. autonomic. c. both a and b. d. none of the above.

Biology & Microbiology