In the case of the red harvester ant, colonies that survive to ____ years of age are likely to contribute to the next
generation of colonies.
a. one
b. three
c. four
d. seven
e. ten
ANSWER: c
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SOS repair
A. requires RecA protein. B. is error prone, i.e., produces mutations. C. is inducible by DNA damage. D. All of the choices are correct.
Loudness is measured in:
a. watts b. volts c. lumens d. amperes e. decibels
Under what condition might a human female have the XY sex chromosome complement?
A) The X chromosome has a mutation such that it is able to overpower the Y chromosome. B) The Y chromosome has an active Xist gene on it. C) This is not possible. D) This female would have one complete X chromosome and a Y chromosome that lacks SRY. E) She has an XX chromosome and a Y chromosome.
Photosynthesis is responsible for producing >50% of Earth's oxygen. During photosynthesis inorganic __ is fixed into organic compounds like___ without the help of sunlight.
A. H2O, Oxygen B. CO2, C6H12O6 C. H2O, C6H12O6 D. CO2, Oxygen E. All of the choices are correct