The ________ is the electron acceptor in a redox reaction.
A. product
B. reductant
C. oxidant
D. enzyme
Answer: C
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The practice of cells turning on the production of some enzymes and turning off others in response to a changing environment is called
A. compromise. B. metabolism. C. nutritional metabolism. D. adaptation.
The control over milk secretion, water balance, and labor in childbirth is mediated by the ____ gland
a. pineal b. anterior pituitary c. posterior pituitary d. parathyroid e. thyroid
Which extraembryonic membrane lies immediately beneath the shell of a reptile embryo?
A) Allantois B) Chorion C) Amnion D) Yolk sac E) Placenta
Which of the following is a specific example of bioremediation?
A) the purification of water for drinking B) the treatment of wastewater C) the treatment of sludge D) the degradation of crude oil spilled into the Gulf of Mexico E) acid mine drainage