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Unit 4 Living Things
and Their Environment
| Question | Answer |
|---|---|
| extinction | The disappearance of an entire species of organisms. |
| environment | All of the living and non living things that surround you. |
| adaptation | A characteristic that helps an organism survive its environment. |
| secondary succession | A gradual build up of organisms in an environment that has soil. |
| Succession is a | cause of change in environments |
| A sloth's long claws are adapted | for clinging onto tree branches. |
| Drought conditions are caused by | dry conditions |
| Extinction can be caused by a | lack of food available to organisms. |
| Conservation means | protecting ecosystems and the organisms living in them. |
| A bird's beak enables the bird to survive in its environment | because the beak is adapted to allow the bird to eat. |
| Water becomes a gas | above 100 degrees Celsius. |
| instinct | A behavior that an animal is born with. |
| physical adaptation | An adaptation to a body part. |
| succession | The gradual changes of organisms is an ecosystem. |
| precipitation | Water that falls from clouds to Earth's surface. |
| evaporation | The process by which a liquid changes into a gas. |
| invasive species | Any non native plant or animal that takes over an environment. |
| behavioral adaptation | Something an organism does to help it survive. |
| primary succession | A gradual build up of organisms in an environment that consists of bare rock. |
| erosion | The process of moving weathered rock and sediment from one place to another. |