Term
| biological species concept |
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Definition
| group of populations whose members have potential to interbreed in nature and produce viable fertile offspring |
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Term
| morphological species concept |
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Definition
| characterizes a species by body shape and other structural features |
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Term
| ecological species concept |
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Definition
| views species in terms of its ecological niche. sum of how members of species interact with nonliving and living parts of their environment |
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Term
| phylogenetic species concept |
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Definition
| species of smaller group of individuals that share a common ancestor, forming one branch on the tree of life |
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Term
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Definition
| reproductive barriers between species may be strengthened over time |
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Term
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Definition
| reproductive barriers between species may be weakened over time, causing the two species to fuse into one |
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Term
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Definition
| hybrids continue to be produced, creating a long-term stable hybrid |
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