The pair of traits that best illustrates convergent evolution is
A. a cartilage skeleton in a shark and a bone skeleton in a dolphin.
B. an elephant's tusks and a beaver's teeth.
C. a lizard's arm and a bird's wing.
D. a dragonfly's wing and a butterfly's wing.
Answer: A
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If two phenotypically normal parents have six children, and two daughters and two sons have the same genetic
disorder, that disorder is most likely to be ____. a. hemophilia b. cystic fibrosis c. Marfan syndrome d. muscular dystrophy e. color blindness
Lyme disease is transmitted by ________.
A. fleas B. ticks C. flies D. lice E. droplets
For a mutation to affect the evolution of an animal species, it must occur within
A) somatic cells. B) diploid cells. C) prokaryotic cells. D) gametes.
The molecule needed to allow a cell to transfer genetic information from RNA to DNA is
A. DNA polymerase. B. RNA polymerase. C. reverse transcriptase. D. chlorophyll.