For a multifactorial, polygenic trait, the characteristic shape of the mathematical plot of frequency for each phenotype class is
A) linear, going up.
B) linear, going down.
C) a bell curve.
D) a square curve.
C) a bell curve.
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In an approach called ________ taxonomy, relatedness is determined by a wide range of phenotypic and genotypic information.
Fill in the blank(s) with the appropriate word(s).
Auditory information travelling from the cochlea toward the brain passes through several structures. Which order is correct?
a. cochlea to primary auditory cortex to the medulla to the pons b. cochlea to cortex pons to medulla to the primary auditory cortex c. cochlea to medulla to pons to primary auditory d. cochlea to medulla to primary auditory cortex to the pons
The first plant to colonize the plains of Mount Saint Helens after this volcano erupted in 1980 was a prairie lupine
The prairie lupine is therefore an example of ____.
a. a secondary successor b. a pioneer species c. a keystone species d. an exotic species e. an introduced species
The region of brain that coordinates antagonistic muscle movements is the
A) medulla oblongata. B) cerebellum. C) pons. D) thalamus. E) occipital lobe.