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Adaptations
Adaptations to a particular environment increase an organism's survival
Term | Definition |
---|---|
population | All the organisms of a given species that live in the same place at the same time. |
ecosystem | All the living and nonliving parts of an environment and the interactions among them. |
biome | A large group of ecosystems that have similar climates and organisms. |
taiga | a biome characterized by cold winters and cool summers and dominated with evergreen or coniferous trees like pines and spruces. |
tundra | a cold, dry treeless biome where harsh conditions make it hard for animals and plants to survive. |
evolution | the process by which species change over time. |
adaptation | any characteristic (behavior or body part) of an organism that helps it survive in a environment. |
variation | differences in traits among members of a species. |
hibernation | a state of complete inactivity during winter. |
migration | an animal's movement to a new location on a regular schedule, such as when seasons change. |
extinction | the permanent dying out of an entire species of organisms. |
species | a group of organisms that share most characteristics and can breed with one another and produce fertile offspring. |
scientific theory | a well accepted concept that explains a wide range of observations. |
natural selection | the process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species. |
types of adaptations | structural( or body part) and behavioral (how an organism acts) |
example of structural | -polar bears having blubber (fat) to keep warm - reptiles having scales to keep water from escaping through their skin |
example of behavioral | wolves hunting in packs to catch prey plants turning to face the sunlight |