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unti4. C&D TEST
avaliable for finals
| Question | Answer |
|---|---|
| whos idea? organisms change according to their enviroment | idea of Lamarck |
| whos idea? improve or lose traits depending on usage ( the use of use and disuse) | Lamarck |
| whos idea? variations exist within a species | idea of Darwin |
| whos idea? acquired characteristics can be passed to offspring | Lamarck |
| whos idea? the enviroment acts to select favorable traits | darwin |
| True/False populations evolve; individuals dont | true |
| significance of mutation to the theory of evolution | mutations are the ultimate source of variation |
| what is an example of variation within a population of a species? | some humminingbirds have longer bills than others |
| give an example of adation and describe how the animal helps them be successful. | cheetahs inherite a fast running ability that help them survive and are able to reproduce to make more fast fierce cheetahs. |
| define coevolution ___ Vs ___ | species changes bc of another species. so if the cheetahs get faster the gozel will need to get faster as well, to survive. |
| what are the 2 types of adaptions? give 2 examples of each | Structural: long necks on giraffs and some being able to camofaug behavioral: strong/ fast being able to fight for your food. tricky/smart |
| Charles Dawin belived in natural selection.. what are his 5 theories? | varation heritability over repoduction reproduction advantage change overtime |
| what are the 3 maj. key points to evolution? | 1. cant choose to evolve, has no control over process. 2. indivual will not elvole in lifetime, population might. 3. natural enviroment causes this process=natural selection |
| adaption | any inherited trait/characteristic that inhances the probibility of that organism surving and reproducing. |
| 5 theories: Varation | different genetics- mutations causes variations. |
| 5 theories: heritability | inherited from parents |
| 5 theories: over reproduction | population may produce more offspring than can survive |
| 5 theories: reproducation advantage | some varations increase the chance of survival and reproduction more fast cheetahs being produced |
| 5 theories: change overtime | overall pop can change over long period of time |
| define symbiosis | 1 or more organism benefits from eachother *interaction b/w 2+ species where atleast 1 benefits* |
| mutualism | (+,+) both benifiting |
| predator/prey | (+,-) 1 benifits other misses out |
| commensalism | (+,O) |
| Parasitism | (+,-) |
| define microevolution & give an example | change at or BELOW the species lvl. ex. evolution of cheetah population |
| define macroevolution & example | change ABOVE the species lvl. ex. the evolution of all vertebrates |
| define phylogenic tree aka cladogram | shows the usage of evolution relationship b/w species that share a common ancestry |
| evidence for evolution: what do fossil records indicate? what do they lead scientist to? | indicate change of organisms over millions of years. preserved features of present day plants and animals link them to extinct organisms. shows transition from 1 organism to another |
| evidence for evolution: comparitive anatomy | the comparision of body structures in diff. species |
| Homologous structures | functions are different, anatomy are very similair due to common ancestry |
| Analagous structures: | fuctions very similar anatomy very different. & NOT due to common ancestry |
| vestigial structures *(2) and give an example of some | serves no function in the organism & was inherited from an ancestor that had prupose for it. (ex. Pelvic bones in whales, and the Human apendix) |
| Campartire bio-chemistry | similarity among organisms in their genetic make up |
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