Refer to the accompanying figure. Which of the following represents the fall turnover?
a. 1 going to 2
b. 2 going to 3
c. 3 going to 4
d. 4 going to 1
e. 4 going to 2
b
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Refer to the accompanying table. What is the allele frequency of d?
a. 0.1 b. 0.2 c. 0.4 d. 0.5 e. 0.6
This process involves the use of naturally occurring microbes to break down unwanted or dangerous materials.
A. biomagnification B. bioremediation C. bioamplification D. bioassimilation
A shift in weather patterns causes a drought. The normally moist forest becomes dry, with the leaf litter on the forest floor blowing away in high winds. The creek, which normally overflows and floods the forest floor every time it rains, dries up
What would you expect to happen to the slime molds that live in the area? A) The slime mold would begin making red photosynthetic pigments. B) The slime molds would shift from the plasmodium and form fruiting bodies. C) The slime mold would begin parasitizing humans. D) Dry conditions would encourage the slime mold to photosynthesize. E) The plasmodium would expand and colonize the now-clean forest floor.
An inhibitor of phosphodiesterase activity would have which of the following effects?
A) block the response of epinephrine B) decrease the amount of cAMP in the cytoplasm C) block the activation of G proteins in response to epinephrine binding to its receptor D) prolong the effect of epinephrine by maintaining elevated cAMP levels in the cytoplasm E) block the activation of protein kinase A