An astounding 20 percent of the world's freshwater runoff comes from what single source?
A) the Mediterranean Sea
B) the Amazon River
C) the Great Lakes
D) aquifer discharge
E) icebergs
Answer: B
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Analysis of human chromosome 2 reveals that it was produced by the ____ that are still present in our closest
ancestral ape relatives.
a. fusion of many larger chromosomes b. fusion of two smaller chromosomes c. inversion of several centromeres d. reversal of centromere locations e. division of one larger chromosome
A duplicated chromosome has _____ chromatid(s)
a. one b. two c. three d. four e. zero
The animal in the above figure is using ____
for protection. a. mimicry b. display behavior c. warning coloration Community Ecology 416 d. chemical defenses e. camouflage
In a stream that flows over limestone you would predict there would be higher
A) solute concentrations. B) temperatures. C) flows. D) biodiversity.