Most biodiversity hot spots are found in ________ regions

A) western
B) tropical
C) temperate
D) tundra


Answer: B

Biology & Microbiology

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Which one of the following is an advantage of using the fossil record to obtain information about our evolutionary history?

A. The fossil record gives us examples of the intermediate stages of evolution B. There is no advantage that the fossil record provides that DNA analysis doesn't also provide. C. The fossil record gives us the information necessary to define species. D. The fossil record gives us the information needed to confirm that the Neanderthals were the first bipedal humans.

Biology & Microbiology

When the direct method of measuring mutation rates is used, estimates are made for a specific ____________________ over a number of ____________________

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following is the most useful in representing population growth on a graph?

a. logarithmic reproduction of the growth curve b. a semi-logarithmic graph using a log scale on the y-axis c. an arithmetic graph of the lag phase followed by a logarithmic section for the log, stationary, and death phase d. none of the above would best represent a population growth curve

Biology & Microbiology

In a species of desert lizard, only females are known to exist. When two females court prior to reproduction, it is necessary for one lizard to assume the posture of a male to stimulate the other female to ovulate. This is a case of

A. bisexuality.  B. hermaphroditism. C. angiogenesis. D. parthenogenesis.

Biology & Microbiology