Compare and contrast the morphological, phylogenetic, biological, and general lineage species concepts.

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Compare and contrast the morphological, phylogenetic, biological, and general lineage species concepts.

Explain how isolating barriers contribute to speciation. What is meant by “sealing off the gene pool”? Why is this important?

What is the difference between allopatric and sympatric speciation? How can gene pools be isolated when populations are not physically separated?

How does reproductive isolation occur pre and post mating?