Parental care in dinosaurs, crocodiles, and birds is an example of
A. homology caused by convergence.
B. homoplasy caused by common descent.
C. homoplasy caused by convergence.
D. homoplasy caused by evolutionary reversal.
E. homology caused by common descent.
Answer: E
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Which letter in the figure above corresponds to a large influx of Na+ ions into the cell?
A) A B) B C) C D) D E) E
Which of the following signals the end of the reproductive period in females?
A) menopause B) endometriosis C) ovulation D) follicle formation
Which of the following are a reason(s) for the decline in cell numbers during the death phase?
A. Accumulation of toxic waste materials B. Depletion of O2 C. Depletion of nutrients D. All of the choices are correct.
Computers are used to assemble genomes by deducing the order of DNA fragments based on
a. sequence. b. mass spectrometry. c. overlaps. d. well position.