Which of the following describes the function of veins in the body?
a. They are the sites for the exchange of nutrients, waste, and oxygen with tissues at the cellular level.
b. They bring blood high in oxygen from the lungs to the rest of the body.
c. They pump blood to the lungs for reoxygenation.
d. They bring blood high in carbon dioxide back to the heart.
d. They bring blood high in carbon dioxide back to the heart.
Veins deliver deoxygenated blood high in carbon dioxide back to the heart.
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Plants use day-length cues to make preparations for winter, such as increasing the size of roots and other storage organs
A. true B. false
Agglomeration effects
A) have limited the growth of the computer industry in Silicon Valley. B) typically slow down regional economic development. C) are a form of external economy. D) occur when businesses are located near each other, but are not interdependent with each other. E) include both A and B.
Which amino acid(s) is/are found only in the cell walls of bacteria?
A. Glycerol B. L-form of glycine C. Diaminopimelic acid D. L-form of methionine E. L-form of glycine AND L-form of methionine
The ____ generation is dominant in mosses, as it can live independently
a. haploid sporophyte b. haploid gametophyte c. diploid sporophyte d. diploid gametophyte e. triploid sporophyte