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17 Cards in this Set
- Front
- Back
biological evolution |
change over time in populations of related organisms |
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cast |
fossil copy of an organism in a rock |
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extinction |
when all individuals of a species have died |
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fossil record |
set of all the fossils ever discovered on earth |
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geologic time scale |
chart that divides Earth's history into different time units |
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isotopes |
atoms of the same element that have a different number of neutrons |
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mold |
impression of an organism in a rock |
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tissue |
similar cells that work together and preform a function |
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trace fossil |
preserved evidence of the activity of an organism |
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adaptation |
characteristics of a species that enables the species to survive in its environment |
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camouflage |
adaptation that enables species to blend in with their environments |
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convince |
to overcome by argument |
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natural selection |
process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those who do not have variations |
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mimicry |
resemblance of one species to another species |
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naturalist |
person who studies plants and animals by observing them |
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selective breeding |
the breeding of organisms for desired characteristics |
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variation |
slight difference in the appearance of individual members of a species |