The Origin of Species - The biological species concept emphasizes reproductive isolation

4 important questions on The Origin of Species - The biological species concept emphasizes reproductive isolation

Reduced hybrid viability

Genes of different parent species may interact in ways that impair the hybrids development or survival in its environment.

Reduced hybrid fertility

Hybrids can be formed but they are sterile, not being able to reproduce themselves.

Morphological species concept

Characterizes a species by body shape and other structural futures.
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Ecological species concept

Views a species in terms of its ecological niche, the sum of how members of the species interact with the nonliving and living parts of their environment.

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