Evolution Flashcards
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13664278501 | overproduction | each species produces more offspring than will survive to maturity. | ![]() | 0 |
13664278502 | camouflage | A structural adaptation that enables an organism to blend in with its environment | ![]() | 1 |
13664278503 | survival of the fittest | Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection | ![]() | 2 |
13664278504 | competition | Interaction among organisms that vie for the same resource in an ecosystem | ![]() | 3 |
13664278505 | variation | Differences in traits among individual organisms within a population | ![]() | 4 |
13664278506 | natural selection | Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest | 5 | |
13664278507 | adaptation | A trait that helps an organism survive and reproduce in its environment | ![]() | 6 |
13664278508 | mimicry | Gaining protection by looking and acting like a different species | ![]() | 7 |
13664278509 | vestigial organ | an organ that is not functional in an organism, but was functional at some period in its evolution | 8 | |
13664278510 | favorable traits | Offspring with favorable traits survive and reproduce, passing on their traits to another generation | 9 | |
13664278511 | evolution | Change over time | ![]() | 10 |
13664278512 | Lamarck | French naturalist who proposed that evolution resulted from the inheritance of acquired characteristics (1744-1829) | ![]() | 11 |
13664278513 | Darwin | A biologist who developed theory of evolution of species (1859). He argued that all living species evolved into their present form through the ability to adapt in a struggle for survival. | 12 | |
13664278514 | Galapagos Islands | Chain of islands near South America where Darwin developed his theory of natural selection by studying the unique life there. | ![]() | 13 |
13664278515 | finches | Observed by Darwin. Very similar, but differences can be seen in the size and shape of the bill and/or beak. | ![]() | 14 |
13664278516 | mutation | (genetics) any event that changes genetic structure | 15 | |
13664278517 | use and disuse | Theory proposed by Lamarck that said body parts develop with increased usage while unused parts weaken. "Use it or lose it!" | ![]() | 16 |
13664278518 | Trait | A characteristic that an organism can pass on to its offspring through its genes. | ![]() | 17 |
13664278519 | Heredity | Passing of traits from parents to offspring | ![]() | 18 |
13664278520 | artificial selection | Breeding organisms with specific traits in order to produce offspring with identical traits; SELECTIVE BREEDING | ![]() | 19 |
13664278521 | Fossils | Preserved remains of once-living organisms; evidence for Evolution | 20 | |
13664278522 | homologous structures | Structures in different species that are similar because of common ancestry but different because of adaptation to different environments. | ![]() | 21 |
13664278523 | Analagous Structures | similar structure without having a common ancestor | ![]() | 22 |
13664278524 | evolutionary tree | A branching diagram that reflects a hypothesis about evolutionary relationships among groups of organisms. | ![]() | 23 |