The respiratory control center is located in the
A) diaphragm.
B) cortex.
C) medulla.
D) hypothalamus.
E) spinal cord.
C
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A dehydrated runner drinks a lot of water after a race. They rehydrate because
A. the stomach is hypotonic compared to the bloodstream. B. the bloodstream is hypotonic compared to the stomach. C. the stomach and bloodstream are isotonic compared to each other. D. water will diffuse from a low to high concentration. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about osmosis? What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The ? helix contains ______________ amino acids residues per turn. One full turn of the ? helix is ______________ long
A. 5.4, 3.6 Å B. 36, 54 Å C. 3.6, 5.4 Å D. 5.4, 1.5 Å E. 3.6, 1.5 Å
Which group of receptors is most important in helping a diver maintain an upright position while exploring a dark
passageway in an underwater shipwreck? a. proprioceptors b. nociceptors c. chemoreceptors d. thermoreceptors e. electroreceptors
Split genes
A. require spliceosomes to excise introns and then join exons. B. have introns located only at the beginning and end of a coding region. C. are common in prokaryotes and eukaryotes. D. only have exons initially transcribed to mRNA. E. All of these choices are correct.