Transmembrane movement of a substance against a concentration gradient is called ________.
Fill in the blank(s) with the appropriate word(s).
active transport
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What is the key concept addressed by the question?
What will be an ideal response?
Mendel studied tall and short pure-breeding lines of pea plants. Inherited genetic variation would dictate that one line would produce tall plants and the other short plants, but the genes and phenotypes are influenced by what external factor?
What will be an ideal response?
Why and when is asexual reproduction advantageous in plants?
What will be an ideal response?
You are conducting an experiment to determine what concentration of disinfectant is most effective in killing bacteria. In this example, the concentration of disinfectant would represent the
(a). control. (b). experimental variable. (c). response variable. (d). data. (e). hypothesis.