How would you best explain the existence of a mountain range that has abundant conifer trees, ferns, and mosses on the east side, but only sparse shrubby plants on the west side?
A. Adiabatic cooling leads to temperature gradients that produce the differing plant communities.
B. Differences in solar intensity produce the differing plant communities.
C. Precipitation differences due to a rain shadow on the west side produce the differing plant communities.
D. Differences in the specific heat of the two sides of the mountain produce the differing plant communities.
C. Precipitation differences due to a rain shadow on the west side produce the differing plant communities.
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The mutant huntingtin protein is _____________________, meaning that it kills cells, such as those in the brain and nervous system
Fill in the blank(s) with correct word
Atherosclerosis ____
a. decreases arterial lumen size b. affects the diameter of veins c. has no effect on arterial lumen size d. increases arterial lumen size e. presents many clinical symptoms immediately
Which of the following glands has a neurosecretory component as well as a component that is not
under direct neural control?
a. the hypothalamus b. the pineal gland c. the adrenal gland d. the pituitary gland e. the parathyroid gland
Scientists at the Natural History Museum in London estimate that more than ____ percent of living
species have not yet been discovered.
a. 11 b. 27 c. 32 d. 56 e. 98