Which of the following does NOT characterize
most prokaryotes?
a. no nucleus
b. a single circular chromosome
c. cell wall
d. complex internal membranes
e. great metabolic diversity
D
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Considering solutions with the following pH, which is alkaline?
A. 8 B. 7 C. 6 D. 5 E. All are alkaline.
Unlike other decapods, hermit crabs are covered by a very thin and light exoskeleton that does not confer much protection against predators. How is this a selective advantage for the hermit crabs?
What will be an ideal response?
When the prey population is above the predator isocline, the predator population is
a. increasing b. decreasing c. neither increasing nor decreasing
Quantitative traits typically have multiple genetic influences in which alleles of a number of genes contribute individual amounts to the final phenotype without classical dominance or epistasis
The term used for the observed variation that results from this is A) VA. B) VD. C) VE. D) VG. E) VI.