Vocabulary from our Evolution Unit
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| evolution | change in species over time
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| natural selection | the environment chooses which traits are most adapted and will survive
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| overproduction | producing more offspring than the environment can hold
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| variation | having differences in the same trait
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| competition | "fight" against others for food, shelter, mates and etc.
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| adaptive value | the degree to which a trait "fits" an environment and is "chosen" for survival
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| survival of the fittest | the organisms with traits that fit the environment will survive and pass on their traits
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| species | organisms that are related and can reproduce to create fertile offspring
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| fossil record | remains or imprints of organisms from the past that give us an idea of the order that different organisms lived
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| mutation | a change in an organisms DNA that results in different traits
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| adaptation | the trait that best "fits" the environment and is chosen for survival
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| antibiotic resistance | bacteria that have mutated to be resistant to antibiotics (not affected by medicines)so they outcompete other bacteria.
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| organism similarities | common chemical formation, embryo development and anatomy structures between various different organisms because they came from a common ancestor
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| homologous structures | structures that are similar in seemingly unrelated organisms (ex. bone structure of limbs)that give reason to believe in a common ancestor
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| vestigial structures | structures that an organism has that they do not need...probably left over from an ancestor
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Created by:
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