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fossils
which of the following best describes how stingrays compare to their ancien...
Biology, 24.01.2020 23:31 exoticbunnylover123
Apps
fossils
which of the following best describes how stingrays compare to their ancient ancestors?
a. stingrays are very similar to their ancient ancestors.
b. stingrays have tails while their ancestors did not.
c.
stingrays swim, but their ancestors had limbs.
d.
stingrays are shaped very differently from their ancestors,
Answers: 2
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Which of the following human activities resulted in the growth of the north american deer population?
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Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations
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Biology, 22.06.2019 11:00
Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.
Answers: 1
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