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Nudee88 Nudee88
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6 years ago
Microevolution can be said to have taken place when
 
  a. a population experiences a shift in allele frequencies.
  b. a mutation occurs in a population.
  c. several mutations occur in a population.
  d. a feature of an individual animal changes through use or disuse.
  e. when a population has different forms of the same gene.

Question 2

Which germ layer forms first?
 
  a. They all form at the same time.
 b. Mesoderm
 c. None of these choices.
 d. Endoderm
 e. Ectoderm
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1234124312412341243124
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This site is awesome
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Thanks for your help!!
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