Refer to Figure 50-4. The peak in ________ around day 21 corresponds with __________
a. luteinizing hormone; ovulation
b. follicle-stimulating hormone; the development of the follicle
c. estrogen; breakdown of the endometrium
d. progesterone; continuing to build up the endometrium
e. estrogen; ovulation
D
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When most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that ________.
A. microevolution no longer occurs B. artificial selection becomes a greater factor in microevolution C. gene flow between populations is reduced D. the founder effect becomes increasingly important
Over many generations man has chosen certain desirable characteristics in dogs by allowing dogs possessing those characteristics to reproduce. In this way, 150 breeds of dogs, all the same species, have descended from wolves. This process is referred to as
A. convergent evolution. B. natural selection. C. inheritance of acquired traits. D. artificial selection.
A Type I functional response leads to regulation of the prey population by the predator
Indicate whether the statement is true or false
Prevention of low back pain is a benefit of increased flexibility.
a. true b. false