What does the United States's population growth look like?

A. leveling off
B. a rectangular column
C. decreasing
D. increasing
E. an upside-down pyramid


Answer: D

Biology & Microbiology

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Which part of the leaf stores toxic or unpalatable compounds in order to deter grazing herbivores?

a. cuticle b. stomata c. trichomes d. mesophyll

Biology & Microbiology

You are working with a specific enzyme-catalyzed reaction in the lab.  You are a very careful experimentalist, and as a result, at the beginning of each of your experiments, you measure the temperature in the lab.  On days 1 through 5, the temperature in the lab was 20oC.  Today is day 6 of your experiment, and the temperature in the lab is 30oC.  How do you predict that this will alter the rate of your enzyme-catalyzed reaction?

A. It could possibly increase or decrease the rate B. It will decrease the rate C. it will not affect the rate D. It will increase the rate

Biology & Microbiology

Freshwater fish are ________ with respect to osmoregulation.

A. hypotonic regulators B. hypertonic conformers C. hypertonic regulators D. hypotonic conformers E. isotonic conformers

Biology & Microbiology

Developed the vaccine for small pox

What will be an ideal response?

Biology & Microbiology