How do organisms get energy? - Marana Unified School District

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Transcript How do organisms get energy? - Marana Unified School District

How do organisms get
energy?
Getting Energy
• Food chain – a sequence of connected
producers and consumers
• Producer – an organism that makes its own
food
• Consumer – an organism that eats other
organisms
What’s the difference?
• Herbivore – an animal that
eats only plants (rabbits)
• Carnivore- meat-eating
animal (lion)
• Omnivore- a consumer that
eats both plants and animals
• Scavengers- eat the remains
of dead animals (vultures)
• Decomposers- consumers,
usually bacteria and fungi that
break down plant and animal
wastes and return the nutrients to
the soil
• Primary consumer- only
eats plants
• Secondary consumer- eat
primary consumers
Food Web
• Food web – is a
group of connected
food chains in
an ecosystem
– Most organisms eat
more than one type of
food
Energy Pyramid
• Energy pyramidshows that energy is
lost at each level of the
food chain.
ROAR
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