You are bored at a lunch meeting and surreptitiously place a raisin in your glass of water. The raisin swells to twice its original size. Relative to the water, the raisin must have been:
A) hypertonic.
B) osmotic.
C) hypotonic.
D) isotonic.
E) distilled.
A) hypertonic.
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A molecule with the chemical formula C6H12O6 is probably a _____
A) fatty acid B) polysaccharide C) phospholipid D) nucleic acid E) monosaccharide
The wall that divides the nasal cavity is called the _____
a. nasodivision b. nares c. nasal septum d. nasal meatus.
Which of the following statements best describes the function of the xylem?
A. It transports water from the roots to the stems and leaves. B. It transports food between the leaves and the roots. C. It transports minerals from the roots to the stems and leaves. D. It transports both water and minerals from the roots to the stems and leaves. E. It transports water from roots to leaves and food from leaves to roots.
Some very showy desert flowers avoid desiccation of delicate floral tissues by blooming at night. They are pollinated by
A) bees. B) hummingbirds. C) wind. D) bats.