Discovery Education

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community

a group of different populations that live together and interact in an environment

species

a group of organisms that share similar characteristics and can mate with each other to produce offspring

food web

a model that shows many different feeding relationships among living things

food chain

a model that shows one set of feeding relationships among living things

nutrients

a substance such as a fat, a protein, or a carbohydrate that a living thing needs to survive

carbon dioxide

a waste product made by cells of the body; a gas in the air made of carbon and oxygen atoms: Humans rid themselves of carbon dioxide waste by exhaling, or breathing out.

ecosystem

all the living and nonliving things in an area that interact with each other

environment

all the living and nonliving things that surround an organism

predator

an animal that hunts and eats another animal

prey

an animal that is hunted and eaten by another animal

wetland

an area of land where there is water on the surface or where the soil is completely filled with water for at least part of the year

consumer

an organism that eats other living things to get energy; an organism that does not produce its own food (related word: consume)

producer

an organism that makes its own food; an organism that does not consume other plants or animals

organism

any individual living thing

energy {organisms}

the ability to do work or cause change; can be stored in chemicals found in food and released to the organism to do work

biodiversity

the many different types of life that exist in an environment

biological diversity

the presence of many different types of organisms in an ecosystem

decompose

to break down into simple nutrients (related word: decomposition, decomposer)

decay

to break down or wear away

survive

to continue living or existing: An organism survives until it dies; a species survives until it becomes extinct. (related word: survival)

recycle

to create new materials from used products

pollute

to put harmful materials into the air, water, or soil (related words: pollution, pollutant)

light

waves of electromagnetic energy; electromagnetic energy that people can see


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