Which of the following statements does not describe the leaf epidermis?
a. The cells all contain chloroplasts and photosynthesize.
b. Some of the cells are modified to form trichomes.
c. The cells are covered by a waxy cuticle.
d. The cells are relatively transparent.
e. It contains stomata, each of which is flanked by two guard cells.
A
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Predict which food item would be most effective at increasing metabolic rate via digestion of same.
A. cola B. butter C. meat D. baked potato
The two strands of a DNA double helix are held to each other by ____ bonds between nitrogenous
bases.
a. phosphodiester b. disulfide c. glycosidic d. hydrogen e. peptide
An example of commensalism involves which two organisms?
a. acacia trees and ant colonies b. bacteria and legumes c. cattle egrets and cattle d. plants and pollinators e. tapeworms and pigs
Which of the following is NOT accurate in
describing a hormone? a. Hormones produced by a particular species affect only that species. b. Only those cells that have specific receptors for a hormone can respond to it. c. Hormones in general are produced by one cell and cause their effects in another cell. d. Hormones are a type of signaling molecule. e. Hormones stimulate or inhibit gene activity.