What is contained within the xylem sap of a plant?
A) water only
B) water and dissolved minerals only
C) water and sugars produced from photosynthesis only
D) water, dissolved minerals, and sugars
B
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The olfactory receptors discovered by Richard Axel and Linda Buck are members of a large family of similar receptor molecules termed
A. G-protein coupled receptors. B. ligand-gated ion channels. C. voltage-gated ion channels. D. intracellular receptors. E. serine/threonine proteases.
Plant X is receiving 10 hours of light per day. It needs a day length of less than 11 hours to flower. One day the dark period for plant X was interrupted by a flash of red light. Will plant X flower? Why or why not?
What will be an ideal response?
Energy enters most ecosystems by the process of
A. biosynthesis. B. respiration. C. biogeochemical weathering. D. photosynthesis. E. fermentation.
Lab time will focus on being: ______ and _______
Fill in the blank(s) with the appropriate word(s).