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Ch.18,19,20 Science
Chapter 18,19,20 Science Vocabulary
| Question | Answer |
|---|---|
| environment | all the nonliving things around an organism and aggect the life of the the organism |
| habitat | particluar place where an organism lives |
| population | tatal number of individuals of one species occupying the same area |
| community | made up of all the population that live and interact with each other in an area |
| niche | the role of and organism within its community |
| biotic | things that are living or were once living |
| abiotic | things that are nonliving and never were living |
| ecosystem | community6 of organisms- producers, consumers, and decomposer- that interact with each other an their surroundings |
| symiosis | the close physical relationship between two organisms and exists in 3 forms |
| commensalisms | a relationship where only one thing benifits from a symbiosis |
| mutalism | a relationship between 2 organisms in which both benefit |
| parasitism | one organism(the parasite) lives on and obtains its food from another organism- (the host) host is harmed not helped |
| consumer | organism that gets its energy from eating other organisms or plants |
| producer | organism that can make its own food by photosynthesis or chemosynthesis |
| herbivore | organisms that eat only plants |
| carnivore | consumer that eat only meat |
| omnivore | consumers that eat both plants and animals |
| decomposer | organism that breaks down tissue and released nutrients and carbon dioxide back into the ecosystem |
| scavenger | a consumer of dead or decaying plant matter and animal. It eats things that are dead or have been killed by something else |
| food chain | series of stages that shows the transfer of energy from producers to consumers and decomposers |
| food web | combination of all the overlapping food chains in an ecosystem |
| limit factor | any condition that influences the growth or survival of an organism of species (ex. wind, water,air) |
| nonliving limiting factor | each organism fills a certain niche in its community and competition results when two organisms try to fill the same niche. They will compete for food, water, ect |
| predator | animals that eat and catch other organisms |
| prey | the animals predators eat |
| adaptation | a characeristic that increased the chance of an organism to survive in an environment |
Created by:
polarbears1
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