Successful geographic dispersal occurs by
a. expansion of home range.
b. jump dispersal across great distances.
c. continental drift.
d. all of these.
e. none of these.
Answer: d
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The light level at which the rate of carbon uptake in photosynthesis equals the rate of carbon loss in respiration is the light ________ point
Fill in the blank(s) with correct word
Which event is likely to add the most carbon dioxide to the atmosphere?
a) development of a hurricane in the Gulf of Mexico b) leakage from a nuclear reactor in Japan c) clear-cutting of trees in the Brazilian rain forest d) eruption of a volcano in Iceland
Schools of fish typically exhibit a ________ distribution pattern
A) clumped B) random C) J-curve D) scrambled E) uniform
Species that are especially intolerant of physical disturbance to their environment are referred to as ____.
A. ecosystem engineers B. indicator species C. exotic species D. native species E. pioneer species