If environmental conditions continue to favor one specific group of homozygotes over the rest of the population, then
____ selection will eventually occur.
a. stabilizing
b. directional
c. disruptive
d. abnormal
e. frequency-dependent
b
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True or False: True breeding plants are typically heterozygous for most genes
A. true B. false
Foraminiferan shells are made of
A. cellulose. B. chitin. C. calcium carbonate. D. peptidoglycan. E. silica.
Cardiac output can be calculated by
A) measuring the number of heartbeats in one hour. B) monitoring changes in blood pressure for a specific period of time, but for at least 15 minutes. C) multiplying heart rate by stroke volume. D) dividing stroke volume by arterial blood pressure. E) summing heart rate, stroke volume, and blood pressure.
The first day of football practice was rough on the squad. During practice, the players complained of cramps and sore muscles. Although there is evidence to suggest that many different factors may contribute to this, which of the following is most likely to play a role in the soreness?
A. carbon monoxide B. alcohol C. lactate D. carbon dioxide E. glucose