It is thought that the oldest stage of cellular respiration from an evolutionary perspective is
A. glycolysis.
B. the electron transport chain.
C. the Citric acid cycle.
D. fermentation.
Answer: A
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Molecular evidence indicates that the division between humans and African apes took place
True or False: Song in White-Crowned Sparrows is learned by imprinting, and even if deprived of hearing the adult male song during the sensitive period, the young males will always sing the father's song
A. true B. false
Energy is important to life forms because
A) all life forms require a continuous supply of energy. B) energy is required to do work. C) energy is required to make specific alterations in the cell. D) all life forms require a continuous supply of energy and energy is required to do work. E) all life forms require a continuous supply of energy, energy is required to do work, and energy is required to make specific alterations in the cell.
The function of the epididymis is to:
a. secrete an alkaline fluid that neutralizes the acids of the vagina. b. produce a nutritive fluid for the sperm. c. provide a place for maturation and storage of sperm. d. secrete mucus that lubricates the penis. e. maintain sperm at a low body temperature