RELATIONSHIPS AMONG ORGANISMS: PREDATION,

COMMENSALISM AND PARASITISM

1. PREDATION: a predator captures, kills and eats another animal, which is

the PREY

COMMENSALISM: both animals benefit from this relationship. Birds eat insects

and cleans the cow.

SHARK AND REMORAS

3. PARASITISM: one organism benefits and harms the other. The mosquito sucks blood and carries

diseases. The mosquito is the parasite and the person is the host.

The tick is the parasite and the dog is the host.

MISTLETOE IS A PARASITE.

INTESTINAL WORMS ARE PARASITES. THE HOSTS ARE PEOPLE OR ANIMALS.