Ecosystem

Created by pvu94 

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ecosystem

A community and its physical environment together

biome

a large scale ecosystem

community

all the populations of organisms living in the same environment

habitat

a place in an ecosystem where a population lives

niche

the role each population has in its habitat

consumer

an organism in a community that must eat to get the energy it needs

decomposer

a consumer that breaks down the tissues of a dead organism

producer

a organism that makes its own food

food web

shows the interaction among many different food chains in a single ecosystem

food chain

the way in which the organisms in an ecosystem interact with one another according to what they eat, eating the organisms below it

symbiosis

a long term relationship between different kinds of organism

grassland

A biome's whose main plants are grasses.

tundra

A treeless biome between the icecap and the tree line of Arctic regions, having permanently frozen subsoil.

biotic

Of or having to do with life or living organisms or produced or caused by living organisms.

abiotic

Nonliving

predator

An organism that lives by preying on other organisms.

organism

An individual form of life, such as a plant, animal, bacterium.

freshwater

Of, relating to, living in, or consisting of water that is not salty

mountain

a landform higher than a thousand feet

desert

A barren biome with less than 10 inches of precipitation each year with little rainfall, extreme temperatures, and sparse vegetation.

individual

a single organism in an environment

population

all the individuals of the same kind, living in the same environment

herbivore

an animal that eats only plants as food

carnivore

an animal that eats other animals as food

omnivore

an animal that eats both plants and animals as food

prey

an animal that is hunted, killed and eaten by a predator animal

energy pyramid

shows the amount of energy that is available to pass from one level of the food chain to the next

endangered species

a population of organisms that is likely to become extinct if steps are not take to save it

extinct

no longer in existence

overpopulation

a situation in which too many animals compete for the natural resources in an area

tropical rain forest

a biome with lots of rainfall, sun light, trees and warm temperatures

deciduous forest

a biome based on trees that lose their leaves each fall

taiga

a biome made up mostly of needle-leaved evergreens, due to long winters and cold temperatures

compotition

The demand by two or more organisms for limited environmental resources, such as nutrients, living space, or light

instict

A behavior that an organism inherits.

learned behavior

a behavior an animal learns from its parents

threatened

describes a population of organisms that are likely to become endangered if they are not protected

interdependent

depending on each other

types and numbers of plants

determines the types and numbers of animals in an ecosystem

population decline

a situation in which the number of organisms decreases due to natural and unnatural causes

human activity

the most common cause for population decline

ten percent

the amount of energy passed from one level of a food chain to another

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