Suppose that you are a botanist looking for new species of C4 plants. Where should you focus your search?
a. in Arizona
b. in the Florida Everglades
c. in an equatorial rainforest
d. in Nova Scotia
Ans: a. in Arizona
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An untreated Entamoeba histolytica infection can invade the
A) liver. B) lungs. C) brain. D) liver, lungs, and brain.
At one point in human development, tissue connects the fingers, giving the hand a “webbed” appearance. Enzymes
eventually destroy the cells of the webbing and the fingers separate. These enzymes are probably localized in the ____.
a. chromosomes b. smooth endoplasmic reticulum c. lysosomes d. nucleus e. vacuoles
Natality is greater than mortality during the ____ phase.
A. stable equilibrium B. lag C. exponential growth D. death
Who discovered that DNA was the genetic material or transforming factor that could convert nonvirulent R-type Streptococcus pneumoniae bacterium to the virulent S-type?
A. Hershey and Chase B. Weismann and Nageli C. Avery, MacLeod, and McCarty D. Watson, Crick, Wilkins, and Franklin E. Griffith