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memoloka memoloka
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6 years ago
During allopatric speciation, the first event is usually
 
  a. geographic separation of two populations.
  b. a hybridization event.
  c. competitive exclusion.
  d. disruptive selection.
  e. a prezygotic reproductive barrier.

Question 2

A sterile hybrid plant can form a fertile new species if its chromosomes are doubled. This is referred
  to as
 
  a. allopatric speciation
  b. cladogenesis
  c. a hybrid zone
  d. anagenesis
  e. sympatric speciation
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Answer verified by a subject expert
cg5232cg5232
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6 years ago
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memoloka Author
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6 years ago
All correct!
wrote...
6 years ago
Happy to help
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