Which of the following does not affect the evolution of a group of organisms?
A. genetic drift
B. mutation rates
C. mating
D. migration
E. natural selection
C
Biology & Microbiology
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Which bond is a peptide bond?
A) A B) B C) C D) D E) E
Biology & Microbiology
Which among the following is the least
effective means of contraception?
a. abstinence b. rhythm method c. condom d. douching e. spermicides
Biology & Microbiology
Animals obtain minerals such as phosphorus
a. primarily dissolved in drinking water. b. by inhalation. c. by eating meat. d. by eating plants. e. by eating meat and by eating plants
Biology & Microbiology
The human embryo's first blood cells arise in the
A) developing liver. B) developing bone marrow. C) yolk sac. D) allantois.
Biology & Microbiology