The long-term and short-term carbon cycles are connected by the fact that some of the carbon contained in C6H12O6 (or other organic molecules) in plants is incorporated into sedimentary rocks or oil;
it is not immediately reintroduced back into the atmosphere.
A. true
B. false
A
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Which heart condition is the most dangerous?
a. Tachycardia b. Atherosclerosis c. Bradycardia d. Atrial fibrillation e. Ventricular fibrillation
What are the complexes that perform RNA post-transcriptional processing called?
a. nucleases b. genetic regulators c. spliceosomes d. intro retainers
Many male birds will expend a great deal of
energy building nests. Females will mate with the males who build the best nests. This is best described as an example of
a. natural selection. b. sexual selection. c. runaway selection. d. the Red Queen effect. e. disruptive selection
The human skeleton is a typical vertebrate
A. endoskeleton. B. appendicular skeleton only. C. axial skeleton only. D. exoskeleton. E. hydrostatic skeleton.