3.2 Energy, Producers, Consumers

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Primary producers "also called autotrophs"

get their energy from the sun (self feeders)

Photosynthesis

process to make energy from light
ex. plants (autotrophs)

Chemosynthesis

process to make energy from chemicals
ex. deep sea worms

heterotrophs

animals, fungi, bacteria have to acquire energy from other organisms

Consumers

organisms that eat other organisms

Carnivores

kill and eat other animals

detritivores

feed on detritus particles

herbivores

eat plants "vegetation"

scavengers

eat already dead animals

omnivores

eat both meat and plants

decomposers

feed by chemically breaking down organic matter

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