The idea that evolution proceeds with long periods of stasis with relatively brief bursts of fast evolutionary change is
A. temporal isolation.
B. mechanical isolation.
C. gradualism.
D. punctuated equilibrium.
E. hybrid breakdown.
D. punctuated equilibrium.
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The intrinsic rate of the Purkinjie system? is:
A. 15-40 bpm. B. 60-100 bpm. C. 40-60 bpm.
Lactobacillus in the female reproductive tract
A. is the causative agent in common yeast infections. B. is protective. C. is indicative of underlying infection. D. can contribute to STIs. E. can lead to pelvic inflammatory disease.
Ricin is toxic because it
a. binds to eukaryotic DNA. b. binds to eukaryotic mRNA. c. blocks food from entering the cell. d. inactivates ribosomes. e. binds to nerve tissue and causes paralysis.
If two phenotypically normal parents have six children, and two daughters and two sons have the same genetic
disorder, that disorder is most likely to be ____. a. hemophilia b. cystic fibrosis c. Marfan syndrome d. muscular dystrophy e. color blindness