Evidence that exposure to song is important in white-crowned sparrows learning to sing includes which of the following?
A. They need to hear songs from other male white-crowned sparrows from 10–50 days after hatching.
B. They need to hear songs from any sparrow from 10–50 days after hatching to sing properly.
C. White-crowned sparrows raised in a laboratory cannot learn how to sing properly.
D. They must imprint on their father to learn how to sing their song properly.
E. They will not produce any song at all if they do not hear other birds sing.
A. They need to hear songs from other male white-crowned sparrows from 10–50 days after hatching.
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Suppose the interior of the thylakoids of isolated chloroplasts were made acidic and then transferred in the dark to a pH 8 solution. What would most likely happen?
A) The isolated chloroplasts would make ATP. B) The Calvin cycle would be activated. C) Cyclic photophosphorylation would occur. D) The isolated chloroplasts would generate oxygen gas. E) The isolated chloroplasts would reduce NADP+ to NADPH. A) The isolated chloroplasts would make ATP. B) The Calvin cycle would be activated. C) Cyclic photophosphorylation would occur. D) The isolated chloroplasts would generate oxygen gas. E) The isolated chloroplasts would reduce NADP+ to NADPH.
Which of the following would play a direct role in coordinating the response of clinical laboratories to a potential bioterrorism incident?
A. State Police B. CDC C. APHL (Association of Public Health Laboratories) D. CDC and APHL E. FBI F. All of the choices are correct.
Ovulation is triggered primarily by:
a. a surge of LH b. the falling levels of estrogen c. the rising levels of progesterone d. the corpus luteum formation e. the completion of meiosis II
Relatively small organic molecules with a central carbon atom which is bonded to a carboxyl group, an amino group, a carbon containing group, and a hydrogen atom are called:
A. peptides. B. nucleotides. C. fatty acids. D. enzymes. E. amino acids.