Hydrolysis of large biological molecules into smaller ones that can be absorbed by cells is
A) ingestion
B) mechanical digestion
C) chemical digestion
D) secretion
E) propulsion
Answer: C) chemical digestion
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Which of the following is false regarding water's specific heat?
A) The specific heat of water is 1.0 calorie per gram. B) Heat applied to water must initially break a number of hydrogen bonds. C) Water's high specific heat has a temperature-buffering effect. D) Water gains and loses heat more slowly than most other solvents do. E) The specific heat of water is similar to most liquids.
Which hormone helps with adaptation to long term stress?
A. glucocorticoids B. epinephrine C. insulin D. glucagon E. melatonin
Which of the following is not true? a. Biological wealth can be exploited to discover useful chemicals
b. Governments must choose between policies good for their economies and policies good for the environment. c. Zea diploperennis was thought to be extinct until rediscovered by a Mexican college student. d. Wild maize, Zea diploperennis, is being protected for its genetic diversity and potential to help improve crops.
The column of water extending in tubes from
plant roots to leaves is maintained by a. cohesion among water molecules. b. ionic bonds. c. covalent bonds. d. hydrophobic interactions. e. hydrophilic interactions.