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| The selection by humans for breeding of useful traits from the natural variation among different organisms. (pg 379) |
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| The competition among members of a species for food,living space, and the other necessities of life (pg. 380) |
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| The ability of an organism to survive and reproduce in it's environment. (pg 380) |
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| The inherited characteristic that increases an organism's chance of survival (p. 380) |
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| The process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection. (pg 381) |
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| The process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest. (pg 381) |
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| descent with modification |
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| The principle that each living species has descended, with changes, from other species over time (pg. 381) |
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| The principle that all living things have a common ancestor (pg 382) |
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| Structures that have different mature forms in different organisms but develop from the same embryonic tissues. (pg 384) |
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An organ that serves no useful function or is used differently than it was originally intended for in an organism (pg 385)
examples include human hair, the appendix, the pelvis of whales, the eye sockets of moles, fetal teeth in a platypus, etc. |
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