By: Nayeli Gamarra
A predator is what is hunts the prey which is
always much weaker than them.
 A prey is what is being hunted and is helpless
compared to its predator.
 Ex: A lion killed and is eating the zebra (desert).
 Ex: A spider eating a mosquito (forest).
 Ex: A red fox eating a rabbit (tundra).

A
scavenger are
organism that eat
carcass of dead
organisms they find.
 Ex: A vulture eating
left remains.( desert)
 Ex: Wolves eating left
carcass
found.(tundra)
 Ex: A male chimp
eating the carcass of
a red colobus. (forest)
 Mutualism
is when both of the organism
benefit, a win-win situation.
 Ex: A turtle swimming with fish that help
clean shell. (fresh water)
 Ex: A bee taking the pollen from the
flower. (rain forest)
 Ex: A bird eating the bugs on a cactus
.(desert)
Commensalism is when one
organism is benefited but
the other is not harmed.
 Ex: An owl living inside a
tree.(forest)


Ex: Epiphytes growing on a
tree. (rainforest)

Ex: A clown fish living in a
sea anemones.(salt water)
 Decomposers
are organism
break down dead
organisms.
 Ex: A beetle decomposing
dung on floor. (forest)
 Ex: A puffball mushroom
decomposing dead
leaves.(rainforest)
 Ex: Sow bugs decomposing
dead bark on tree.(desert)
 When
an organism
benefits but the
other one is harmed.
 Ex: A mosquito
sucking blood from
human.(desert)
 Ex: A cow bird eating
another bird.(forest)
 Ex: A shark eating
fish in the water.
(salt water)
 When
organism
compete eat with each
other .
 Ex: Polar bears
fighting .( tundra)
 Ex: Wolves fighting
.(forest)
 Ex: Two Ox that are
fighting. (tundra)
 Mutualism
: A Musk ox eating the grass which
allow new grass to grow.
 Parasitism: A Catalpa worms eating Cotestia
congregatus.
 Commensalism : Bird sleeping inside a tree.
 Scavenger :An Alaskan wolf is a scavenger
that eat dead remains of other organisms.
 Predator-Prey: An Alaskan wolf preying on a
rabbit.
 Decomposer: Mushrooms on dead trees
decompose it.
 Competition: Ferro burros that compete for
female .
 Mutualism
:Human hiking with a horse.
 Parasitism: Wolves devouring
 Commensalism: A Spanish moss growing on
the branches of an oak tree.
 Scavenger: A king vulture praying on any
remains of dead animals.
 Predator-Prey: A bird praying on the worms
on the ground.
 Decomposer: Fungi decomposing dead
leaves.
 Competition: Bears fighting for a basket
filled with food they both spotted.
 Mutualism
: Humans going for a hike with
the family.
 Parasitism: Rattle snake eating a dead
prairie dog.
 Commensalism: An owl living inside a cacti.
 Scavenger: A vulture eating a dead
jackrabbit.
 Predator-Prey: A coyote praying on a
roadrunner.
 Decomposer: Earth worms decomposing
dead bushes.
 Competition: Coyotes fighting dead quails.
 Mutualism
: Bee eating the nectar of a
flower.
 Parasitism: Leeches sucking the blood of
animals.
 Commensalism: A frog living inside a tree.
 Scavenger: Valgum dung beetles forgo starts
to eat a dead millipede.
 Predator-Prey: A jaguar preying on a dear.
 Decomposer : A slog starts to decompose
dead carcass and leaves on forest ground.
 Competition: Monkeys compete for the best
trees with the most fruit.
 Mutualism
: A clown fish living inside an
anemone.
 Parasitism : An octopus eating a dead fish.
 Commensalism : A small fish attached to a
shark .
 Scavenger : A piranha devouring another fish.
 Predator-Prey : A shark preying on a fish.
 Decomposer : See weed decomposes dead
remains on the bottom of the water.
 Competition :Two sharks fight over a clown
fish to eat it.
Mutualism :A zooxanthellae live inside the coral’s
tissue.
 Parasitism : The Catalpa Worm is being
parasitized by tiny wasp larvae.
 Commensalism : Fish have pondweed which
protects it and give it shelter.
 Scavenger : A crayfish eating remains of fishes.
 Predator-Prey :The river muskrat eats the brown
bass.
 Decomposer : Fungi breaking down the remains
of the skeleton of a fish remains.
 Competition : A freshwater snails and Anuran
tadpoles feed on periphytic algae.
