All of the following are examples of how animals gain water EXCEPT
a. metabolism.
b. foods.
c. drink.
d. evaporation.
D
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A new virus has recently been identified that has been linked to certain birth defects. A pregnant woman is infected with this virus in the fifth month of her pregnancy. However, at birth, the infant shows no signs of the characteristic birth defects. What is the most likely explanation?
A) The virus actually doesn't cause birth defects. B) The woman was likely infected after the virus' critical period. C) The woman was actually infected by a different virus. D) The woman was likely infected during the virus' critical period.
Which of the following build(s) new strands of DNA?
a. The leading strand b. DNA polymerases c. The lagging strand d. Parental DNA e. The origins of replication
Peroxisomes contain enzymes used to digest nutrients that have been brought into the cell through phagocytosis.
Answer the following statement true (T) or false (F)
When researchers examined the effects of withholding nitrogen from Bradyrhizobium japonicum they used a "split root" treatment in which half of a soybean plant's root mass received gaseous nitrogen, whereas the other half did not
Why did the researchers use this split root treatment? a. They economized on experimental soybean plants. b. They tested whether different parts of the root react differently to the absence of nitrogen. c. They tested the range of nitrogen in which soybean plants can thrive. d. They tested whether the potential "retaliation" against cheating symbionts was specific to root nodules that did not fix nitrogen.