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9 Cards in this Set
- Front
- Back
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Evolution
4-1 |
process by which species change over time
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species
4-1 |
group of organisms that look alike and can reproduce among themselves
Ex: humans, tigers, snakes |
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adaptation
4-1 |
trait that helps an organism survive in its environment
Ex: yellow spider sits on a yellow flower |
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mutation
4-1 |
change in a gene that may alter the traits of an organism
*occur randomly in nature *can increase by factors in the environment(pollution, radiation) *gives rise to a variety of traits within a species *are harmful or deadly to organisms ex: albino snake(white in color) can be helpful so then species passes it on to next generation causing a change |
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sexual reproduction
4 notes |
gives rise to a variety of traits within a species
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Fossil
4-2 |
remains or traces of a once-living organism
often seen in rocks ex: mammoth found in ice |
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amber
4-2 |
hardened tree sap
yellowish in color parts of animals found in amber |
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extinct
4-2 |
no longer found as a living species
can not be found on the planet |
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seimentary rock
4-2 |
fossils generally found in this type of rock
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