Populations of the snail Cepaea nemoralis exhibit three color morphs, a good example of a ________ trait
A) continuous
B) discontinuous
C) quantitative
D) polygenic
E) B, C, and D only
E
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The most plausible explanation for the high number of spiders in plot 4 is:
A. there are too many flies overall. B. there are no centipedes to prey on the spiders and there are abundant flies upon which to feed. C. the spiders preyed on the centipedes and ignored the flies. D. the flies and spiders worked together to eliminate the centipedes.
Though reptiles are generally described as tetrapods, some are limbless like the garter snake shown in this photo. Under which order are the limbless reptiles, as well as the lizards, classified?
a. Spenodontia
b. Crocodilia
c. Squamata
d. Testudines
The sequence of DNA on each chromosome where the sister chromatids are held together is called the
a. centrosome. b. kinetochore. c. centromere. d. centriole.
In the growth cycle of a culture, the period where the cells are being replaced at the same rate as they are dying is
What will be an ideal response?