If prokaryotic cells do not have mitochondria, where do they produce their cellular energy?
What will be an ideal response?
The cell membrane contains most of the molecular systems needed to metabolize food molecules to
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The radioactive decay of carbon-14 can be used to determine
a. relative dating. b. absolute dating. c. mutation rates. d. plate tectonics. e. extinction rates.
Human fingerprints are a good example of a multifactorial trait. What evidence can you cite to suggest that fingerprints are partially influenced by genes? How about evidence suggesting that they are partially influenced by environmental factors?
What will be an ideal response?
Menstruation occurs when there is a decrease in
A) levels of estrogen and progesterone. B) the number of follicles. C) levels of FSH and LH. D) endometrial thickness. E) the number of sperm present.
Doubling the chromosomes of a sterile species hybrid with colchicine or cold shock is a method used to produce a fertile species hybrid called a ________
A) autoallopolyploid B) (amphidiploid) C) autoploid D) allopolyploid E) triploid