EPSPs can form due to the diffusion of Na+ across a neuron plasma membrane
Indicate whether the statement is true or false.
T
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A cohort study looks at
A) a large group of people over time, keeping track of specific health conditions or measures. B) large groups of DZ and MZ twins. C) heritabilities of behavioral characteristics. D) patterns of copy number variants in the human genome.
Consider a living plant cell in a living leaf that has a higher water potential than the fluids surrounding
the cell. In such a situation there should be
a. a net flow of water out of the cell. b. gain of water by the cell only if the cell's pressure potential is high enough. c. no net flow of water into or out of the cell. d. a net flow of water into the cell. e. gain of water by the cell only if the cell's pressure potential is low enough.
In the accompanying figure, what process is occurring at point Process B?
a. mitosis
b. meiosis
c. pollination
d. fertilization
e. development of embryo sac
Which of the following is characteristic of all algae?
a. They are unicellular. b. They are multicellular. c. They have life cycles with alternating generations. d. They have chlorophyll.