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Food Chains Food Webs
Transcript of Food Chains Food Webs
-only eats plants
-only eats meat
-eats both plants
-Make their own food
-Cannot make their
breaks down dead/
depends on the sun
-Eats dead stuff
Food Chain-shows how energy flows by indicating what organism is eaten by another organism.
Food web-shows how all organisms in a particular ecosystem are related, and how they depend on each other to survive.
Energy Pyramid-places organisms into
as you travel
the pyramid. (each level only gets about
of the energy)
is supplying energy to plants for photosynthesis.
(not this kind)
predator vs prey
meal of the carniverous killer
(aka the victim)
one is not harmed
-both organisms benefit
from each other.
red-billed oxpeckers feed
on parasites on the impala.
-one organism benefits
the other is harmed.
-cuckoo bird shoves
robin's eggs from nest
so the mother raises/feeds the cuckoo bird.
point in the direction of the
Why do you need biodiversity within a food web?
How many producers do you see in this food web?
What would happen if a catastrophic event wiped out all of the producers?
Is there enough diversity to sustain this web without the grass?
Symbiosis- ecological relationships between 2 or more different species.
(write this in the summary section of your notes)
Cattle egrets and livestock
-eat bugs stirred up by the cattle eating the grass.
Food Chains and Webs