Speciation is not a mechanism of microevolution.
If it has valves then it is a vein.
Answer:
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The minor segment is the region bounded by the chord and the minor arc intercepted by the chord. The major segment is the region bounded by the chord and the major arc intercepted by the chord.
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Explanation:
energy flows in only one direction through an ecosystem.
Answer:
An adequate sample of a population for studies of natural selection should
be large enough to:
represent the genetic variation in the population
Explanation:
