Which of the following is NOT a specialized function of one or more regions of the digestive tract?
A. food storage
B. aerobic metabolism
C. chemical breakdown
D. absorption of nutrients
E. elimination of waste products
B
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Which of the following statements about mycorrhizae is correct?
A. Endomycorrhizal fungi constitute a monophyletic group. B. The hyphae of ectomycorrhizal fungi penetrate plant root cells. C. Endomycorrhizal fungi provide plant roots with nutrients, whereas ectomycorrhizal fungi do not. D. Endomycorrizal fungi receive carbohydrates from plants, whereas ectomycorrhizal fungi do not. E. Endomycorrhizal fungi branch extensively in the soil surrounding plant roots, whereas ectomycorrhizal fungi do not.
Most nutrients are absorbed across the epithelium of the
A. stomach. B. esophagus. C. small intestine. D. colon. E. large intestine.
Which of the following flower parts develops into the pulp of a fleshy fruit?
A) stigma B) style C) ovule D) ovary
When the concentration of glucose in the blood rises following digestion of a meal, what is the hormonal response?
A) Levels of both glucagon and insulin increase. B) More glucagon is released. C) More insulin is released. D) Neither glucagon nor insulin is released.