If these fly species lost the ability to fly independently of each other (the result of separate mutation events in each lineage), then the flightless condition in these species could be an example of
A) adaptive radiation.
B) species selection.
C) sexual selection.
D) allometric growth.
E) habitat differentiation.
Answer: B) species selection.
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What phase does it occur when each pole of the cell now has one new daughter nucleus, each with a haploid number of chromosomes
What will be an ideal response?