Mutation is one of the two factors that increase genetic variation
A. true
B. false
A
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In the mechanics of conjugation, exclusive of gene transfer, Hfr and F+ strains behave the same.
Answer the following statement true (T) or false (F)
The evolution of angiosperms increased the productivity of terrestrial ecosystems
A. true B. false
According to the principle of use and disuse the form of body parts in offspring ____
a. are inherited based on phenotypic changes that occur in parents during their lifetime b. are the result of how much the offspring uses a particular body part c. are the result of natural selection d. are immutable e. are a result of biogeographic location
The action of a white blood cell engulfing a
bacterium is a. pinocytosis. b. phagocytosis. c. exocytosis. d. endocytosis. e. phagocytosis and endocytosis.