In soil, which horizon is considered the soil base?
a. O horizon
b. A horizon
c. C horizon
d. B horizon
c. C horizon
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What piece of the RNA HIV genome is used as a primer during the synthesis of double-stranded DNA from HIV RNA?
A. tRNA B. U3 C. gag D. PPT
The serotinous cones of the longleaf pine, Pinus palustris, depend on _____ to release their seeds.
A. daylight B. extended freezes C. sustained rainfall D. fire E. animals
The purpose of the distasteful odor emitted from the stinkhorn fern is to
a. attract flies. b. discourage predators. c. mimic another fungus. d. prevent plants from growing nearby.
Which of the following correctly describes the main difference between type 1 and type 2 diabetes?
a. One causes hyperglycemia, while the other causes hypoglycemia. b. One demonstrates protein breakdown, while the other demonstrates protein synthesis. c. One leads to blindness, while the other leads to kidney disorder. d. One has insulin hypersecretion, while the other has insulin hyposecretion. e. One has insulin deficiency, while the other has insulin resistance.