The pollen tube grows from the ________ to the ________, where it eventually fertilizes the egg
A) anther; style
B) sepal; filament
C) stigma; ovule
D) petal; ovary
C
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Sexual dimorphism has arisen as a result of
a. stabilizing selection. b. heterozygote superiority. c. kin selection. d. sexual selection. e. directional selection.
Pituitary secretion of ADH increases in response to high blood ______.
Fill in the blank(s) with the appropriate word(s).
When a recipient cell acquires a piece of naked DNA from the environment, it is called ________.
A. conjugation B. transfection C. transduction D. transformation
Infection with influenzavirus is commonly diagnosed using
A) an immunoblot assay. B) viral neutralization tests. C) immunochromatographic assay. D) viral hemagglutination inhibition test. E) both immunochromatographic assay and viral hemagglutination inhibition test.