Which of the following pairs perform essentially the same function in cells?
A. aquaporins and contractile vacuoles
B. plasma membranes and cell walls
C. turgor pressure and proton pumps
D. electrochemical gradient and osmosis
Answer Key: A
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Historical data suggest that snowshoe-hare population cycles are caused by Canada lynx predation. Modern research has ________
a. confirmed this hypothesis and shown that lynx starve after having depressed the hare population b. demonstrated that snowshoe hares cycle even in captivity, indicating a genetic basis for variations in density c. as yet been unable to explain the cyclic changes in hare density d. shown that multiple factors, such as raptor predation and plant interactions produce oscillations even in the absence of lynx
each cell runs on chemical energy mainly found in ___________________.
Fill in the blank(s) with the appropriate word(s).
Mycorrhizae are associations between bacteria and the roots of select plants.
Answer the following statement true (T) or false (F)
What are the three main components of a DNA nucleotide?
What will be an ideal response?