Geographically, where is net primary productivity the highest?
a. at the north pole
b. at the south pole
c. between 30o and 60o
d. in the Northern hemisphere
e. at the equator
ANSWER: e
You might also like to view...
In karyotyping, individual chromosomes may be distinguished from others by
a. a comparison of chromosome lengths. b. bands produced on chromosomes by differential staining. c. the position of centromeres. d. the relative lengths of the "arms." e. all of these.
Which of the following is NOT a special property of water?
a. Water converts from a liquid to a gas quickly and over a narrow range of temperatures. b. Water molecules tend to stick together, which can result in surface tension. c. Water can absorb significant amounts of heat energy without changing temperature. d. Water is an excellent solvent.
The main function of an earthworm's gizzard is to
A) moisten food. B) store food. C) absorb food. D) grind food.
Rabid animals typically salivate excessively in the late stages of the disease. This excess salivation
A. provides a portal of exit for the virus. B. indicates that the salivary glands are the portal of entry. C. is the result of hydrophobia. D. helps reduce and control the fever.