Ecological diversity is a measure of the number of
A. Different versions of the same gene in an ecological community
B. Different kinds of organisms within a community or ecosystem
C. Niches, trophic levels, and ecological processes of a biological community
D. Sizes, colors, and shapes of organisms within an ecological community
E. Different species in an ecosystem
Answer: C
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Approximately what percentage of precipitation that falls on the continents runs off the surface via rivers/streams?
A. two-thirds B. one-third C. one-tenth D. nine-tenths
Streams draw their water from a region known as the
A. drainage lake. B. drainage basin. C. drainage aquifer. D. drainage divide.
________ is the transformation of saturated sediments from the solid to the liquid form
Fill in the blank(s) with correct word
Which of the following is not an example of matter?
A) the air in your lungs B) the blood in your arteries C) the sunlight coming through the window D) None, all of these are matter.