In arid terrestrial environments, salt can accumulate in the soil because of

A. the selective uptake of water by plants.
B. the activities of grazing animals.
C. the precipitation of salt from dry air.
D. the secretion of salt by plants.
E. the settlement and evaporation of water.


E. the settlement and evaporation of water.

Biology & Microbiology

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The above figure is a photomicrograph of what

kind of tissue? a. cardiac muscle b. skeletal muscle c. smooth muscle d. cartilage e. dense connective

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The weakest symbiotic association, in which one

species simply lives better in the presence of another species is a. commensalism. b. competitive exclusion. c. mutualism. d. facultative obligate mutualism. e. parasitism.

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Salinization of water used in irrigation has reduced crop yields by ____

a. 10 percent b. 25 percent c. 33 percent d. 50 percent e. 75 percent

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Refer to the paragraph on lymph hearts. What effect would increasing lymph heart pressure have first?

A) Blood volume would increase. B) Blood volume would decrease. C) Hemorrhage would increase. D) Hemorrhage would decrease.

Biology & Microbiology