1. By: Nayeli Gamarra

2.  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).

3.  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)

4.  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)

5.  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)

6.  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)

7.  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)

8.  When organism compete eat with each other.  Ex: Polar bears fighting.( tundra)  Ex: Wolves fighting.(forest)  Ex: Two Ox that are fighting. (tundra)

9.  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.

10.  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.

11.  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.

12.  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.

13.  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.

14.  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.