In estuaries at high latitudes, which of the following factors strongly influences mixing?
a. Oxygen concentrations
b. Nutrient concentrations
c. Carbon dioxide concentrations
d. Temperature
e. Turbidity
D
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Imagine that fungal hyphae were as thick as a human hair. How might this increase in thickness affect the ecological role of fungi?
A. Their rates of decomposition of detritus would decrease because their ratio of surface area to volume would be decreased. B. Their rates of decomposition of detritus would increase because their ratio of surface area to volume would be increased. C. There would be no effect on the rates of decomposition of detritus. D. There would be no effect on the rates of decomposition of detritus because the fungi would still be heterotrophic.
Red light and phytochrome are involved in which of the following plant growth responses? Check all that apply.
_____ thigmotropic responses _____ inhibition of seed germination _____ elongation of etiolated shoots _____ detection of crowding by neighboring plants
3PG. ATP and NADPH from the light reactions are then used to reduce 3PG to
What will be an ideal response?
The primary function of the stomach is to
A. eliminate water and tissue fluid. B. absorb major nutrients. C. package feces. D. break down fats. E. store food, churn, and begin digestion.