Food Chains and Food Webs Guided Notes

Food Chains and Food
Webs
Guided Notes
Energy Roles of Organisms in
an Ecosystem
Producer
___________________
is an organism that
can make its own food.
grasses
Examples include ________________,
trees
other plants
_______________,
and _______________.
Producers
____________________
are the source of all
energy in an ecosystem.
Plants
________________
are producers that
sun
capture energy from the ________________
food
and turn it into ___________
in the form of
sugar and starches
______________________.
Photosynthesis
________________________
is the process
that organisms go through to produce energy
Carbon dioxide and
by using _______________
water
__________________
to produce molecules
sugar
such as ______________
and
starches
__________________,
along with
oxygen
_______________.
Consumers
_________________________
are
organisms the obtain energy by feeding on
other organisms.
Types Of Consumers
Type of Consumer
Type of Food
Herbivore
Only plants
Carnivore
Only animals
Omnivore
Both plants and
animals
Dead organisms
Scavenger
Decomposers
______________________
- Organisms
waste
that break down ___________
material
organisms
and dead _________________
and return
the raw materials to the environment.
Examples of Decomposers :
Bacteria, and fungi
__________________________________
Food Chain - Series of events in which
_____________
one organism eats another to obtain energy.
Example:
1. Producer
First-level or primary consumer
2. ______________________________
(eats producer)
3. ______________________________
Second-level or secondary consumer (eats consumer)
Food web
______________________
- Consists of
overlapping
many ________________
food chains in an
ecosystem.
Energy Pyramid
_______________________Shows the
amount of energy that moves from one
feeding level to another in a food web.
10 %
A. Only _______________
of the
energy at one level of a food web is
transferred to the next level.
90 %
B. _______________
of the
energy is used for the organism’s
life processes or is lost as heat to
the environment.