
the transfer of energy and matter in the form of food
when one organism eats another organism.

a group of food chains within the same ecosystem.
1.
2.
Sun – the energy
source that fuels a
food chain.
Producer –plants
convert the sun’s
energy into food by a
process known as
photosynthesis.




Herbivore – an
organism that eats
only producers.
Carnivore – an
organism that eats
only other
consumers.
Omnivore – an
organism that eats
both producers and
consumers
Scavenger – eats dead
organisms.
Decomposer – an organism
that feeds on
dead or
decaying matter
and breaks
down the
nutrients into
the soil making
them available
for use.
Nutrients in the
soil absorbed by
plants – process
starts anew
Producer
[Photosynthesis]
Primary
Consumer
Scavenger /
Decomposers
(Herbivore or
Omnivore)
Secondary
Consumer
[Etc. – Tertiary,
Quaternary]
(Omnivore or
Carnivore
Arrow represent
the flow of
energy
Energy is lost
(10% energy
transfer) as
you move up
the pyramid