If the vas deferens tubes are cut and tied
(vasectomy), the semen eventually will not contain
a. fructose.
b. buffers.
c. prostaglandins.
d. sperm.
e. any of these.
Answer: d
Biology & Microbiology
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Plant growth is due to actively dividing cells called:
A. nodes. B. primordial cells. C. meristem cells. D. vascular cells. E. bundle sheath cells.
Biology & Microbiology
Glycolysis converts glucose into two ________ molecules.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Which of the following does NOT cause changes in allele frequencies?
a. genetic drift b. mutation c. natural selection d. gene flow from migration e. random mating
Biology & Microbiology
A cell's metabolic pathways can be taken over by the DNA from a
A. bacteria. B. fungus. C. virus. D. host.
Biology & Microbiology