If a sheep and goat are mated, their offspring dies as an embryo. This is an example of _______ reproductive isolation.

A. prezygotic
B. allopatric
C. sympatric
D. postzygotic
E. outgroup


D. postzygotic

Biology & Microbiology

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Research by Christopher Cullis has shown that ____

a. the genome size of plants varies little between species b. the genome size of individual plants of the same species is constant c. a plant’s environment can act as a selective agent to establish advantageous variants, but these variants cannot be transmitted to the next generation d. a plant’s environment can act as a selective agent to establish advantageous variants, and these variants can be transmitted to the next generation e. the genome size of plants is related to plant size

Biology & Microbiology

Which of the following processes is the transfer of heat from a body to a fluid that passes over its

surface?

a. conduction b. radiation c. evaporation d. convection e. radiative cooling

Biology & Microbiology

The element needed for blood clotting, nerve

transmission, and bone formation is a. iron. b. iodine. c. calcium. d. zinc. e. magnesium.

Biology & Microbiology

Which of the following is represented by the membrane indicated in the figure?



a. outer mitochondrial membrane
b. plasma membrane
c. nuclear membrane
d. inner mitochondrial membrane

Biology & Microbiology