The mutualism of Azolla-Anabaena is useful for
A) aquaculturalists.
B) corn farmers.
C) rice farmers.
D) tropical forest community succession.
Answer: C
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Factors that can alter the level of expression of a gene include
_____ an increase in environmental temperature. _____ an increase in salinity. _____ exposure to UV radiation. _____ presence of a particular energy substrate.
Promising options being explored to control fire ants
include a. biological controls. b. pesticides. c. wholesale physical destruction of their mounds. d. herbicides. e. all of these.
Which of the following is a long-term effect of heroin use?
Select one: a. The body decreases the production of endorphins. b. The body increases the production of endorphins. c. a decrease in dopamine production d. a release of excess dopamine e. All of the answer choices are long-term side effects of heroin use.
Which of the following is NOT related to genetic drift?
A. Bottleneck effect B. Neutral variation C. Non-Darwinian evolution D. Founder effect E. Sexual selection