According to the figure, what is the only hormone that doesn't peak during ovulation?
A. progesterone
B. FSH
C. LH
D. estrogen
E. all female reproductive hormones peak at ovulation
A. progesterone
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Osmosis refers to the diffusion of ________ across a semipermeable membrane
a. water b. all dissolved solutes c. any dissolved solute d. both water and any dissolved solute
The offspring of a cross between two individuals that
breed true for different forms of a trait are __________. Fill in the blank(s) with the appropriate word(s).
What cellular feature allows a mineral such as manganese to diffuse from cell to cell after being taken up by roots?
A) Sieve plates B) Microfilaments C) Plasmodesmata D) Microtubules E) Secondary cell walls
How are steroids able to cross cell membranes and enter cells?
A) Steroids and cell membranes both contain receptor proteins. B) Steroids are able to pass through the phospholipid bilayer. C) Steroids can diffuse through open channel proteins in the membrane. D) Steroids move through cell membranes by osmosis.