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

Biology & Microbiology

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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?

Biology & Microbiology

Energy enters most ecosystems by the process of  

A.  biosynthesis. B.  respiration. C.  biogeochemical weathering. D.  photosynthesis. E.  fermentation.

Biology & Microbiology

Lab time will focus on being: ______ and _______

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

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.

Biology & Microbiology