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Science Chapter 3

QuestionAnswer
photosynthesis The process by which a green plant turns water and carbon dioxide into food when the plant is exposed to light.
symbiosis The close relationship two species share in an ecosystem.
mutualism A relationship in which both species benefit.
commensalism A relationship in which one species benefits and the other species in neither helped nor harmed.
parasite An organism living on or inside another organism (host) that takes nutrients away from the host, which harms it.
community The group of all populations in an area.
ecosystem All the living and nonliving things in an area and their interactions.
predator A consumer that hunts and eats another animal.
habitat A place that provides all the things an organism needs to live.
prey Any animal that is hunted by others for food.
population A group of organisms of one species that live in an area at the same time.
competition The struggle among organisms for the same limited resources.
food chain A series of steps by which energy moves from one type of living thing to another.
producer Organism that makes its own food for energy.
pollution Any substance that damages the environment.
food web A diagram that combines many food chains into one picture.
consumer Organism that cannot make its own food.
conservation An attempt to preserve or protect an environment from harmful changes.
environment All of the conditions surrounding an organism.
decomposer Organism that gets its energy by breaking down waste and dead organisms.
Created by: CoachD
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