Relationships in an EcosystemRelationships in an Ecosystem

SYMBIOSIS A relationship where 2 species live closely together.

SYMBIOSIS 3 TYPES:•parasitism

•commensalism•mutualism

PARASITISMrelationship where one organism feeds on the tissues or body fluids of another. Parasitism harms one organism and benefits the other.

SYMBIOSIS

HOSTThe organism on which a

parasite feeds.

SYMBIOSIS: PARASITSM

A parasite may even kill its host.

Most do not .

SYMBIOSIS: PARASITISM: HOST

COMMENSALISMrelationship where one organism benefits and the other is neither benefited nor harmed

SYMBIOSIS

MUTUALISMrelationship where both species benefit

SYMBIOSIS