Ecology - set #2

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Food Web

A diagram showing all of the connected food chains in an ecosystem

Biodiversity

Large variety of organisms

Decomposer

An organism that breaks down dead organisms

Energy Pyramid

A diagram that shows how energy decreases as it travels through a food chain

Food Chain

A diagram showing how energy passes from one organism to the next in an ecosystem

Omnivore

An organism that eats both plants and animals

Carnivore

An organism that eats only other animals

Herbivore

An organism that eats only other plants

Competition

When two organisms fight over the same resource

Community

All of the different populations of organisms in an area.

Biosphere

All of the living space on earth.

Ecosystem

Living and nonliving things interacting in an area

Population

All of the members of the same species in an area.

Coevolution

When two organisms push each other to evolve.

Prey

The organism that is hunted

Predator

The organism that hunts others for food.

Adaptation

A trait that helps an organism survive.

Limiting Factor

The scarcest resource that limits a populations size.

Carrying Capacity

The largest population size an ecosystem can hold.

Parasitism

A type of relationship where one organism benefits while harming the other organism

Commensalism

A type of symbiosis where one species benefits and the other is not harmed.

Mutualism

A type of symbiosis where two organisms help each other.

Symbiosis

A relationship where to species interact and one is benefitted.

Biotic

Living part of the environment

Abiotic

Non living part of the environment

Ecology

The study of how living things interact with nature.

Nutrients

Chemicals that living things can use to live and grow.

Autotroph

Any organism able to make its own food (aka Producer)

Heterotroph

An organism that has to eat its food (aka consumer)

Energy

Used for organisms to do everything it needs to do to live

Glucose

A type of sugar used by plants to store energy from the sun.

Tertiary Consumer

Third level consumer. Often top of the food chain

Primary Consumer

The 1st level consumer. Eats producers

Secondary Consumer

Eats 1st level consumers. Often is a predator and a prey

Quaternary Consumer

4th level consumers. Food chains don't always go this far

Scavenger

An animal that eats other dead animals.

organism

one individual living thing

Warning colors

Bright Colors to warn predators they are poisonous

Defensive Chemicals

When prey use poison or noxious chemicals to deter predators

Defensive covering

When prey have armor or spikes to protect from predators.

mimicry

Looking like a more dangerous organism

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