What could you use to measure metabolic rate in an animal?
A. CO? inexhalations
B. Amount of food eaten
C. The reactants or products of cellular respiration
D. All of these are true
Answer: D. All of these are true
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If a particular trait has three phenotypes and one phenotype represents an intermediate, this
trait displays __________.
a. incomplete dominance b. codominance c. recessive alleles d. dominant alleles
True kidneys have tubules called
a. nephrons. b. hepatic tubules. c. metanephridia. d. Malpighian tubules. e. protonephridia.
In cases of __________ growth, a population’s
growth is proportional to its size. Fill in the blank(s) with the appropriate word(s).
There is a population of giraffes. Some have short necks, some have medium-length necks, and some have long necks. If the short-necked individuals are regularly eliminated from the population, this would be an example of
A. disruptive selection. B. sexual selection. C. disfunctional selection. D. directional selection.