EXOTIC / INVASIVE SPECIES

•An species that is introduced to an area (usually by humans) who has no predators. •Can destroy ecosystems and collapse food webs. • Introduced: by accident, to control another organism

Kudzu vine ->

•Symbiotic •Relationships

3 KINDS OF SYMBIOTIC RELATIONSHIPS

•Symbiosis- close, long term association between 2 or more species.

•Parasitism+/-•Commensalism +/o•Mutualism +/+

PARASITISM•Relationship between parasite and host.•One organism benefits•One organism is harmed

COMMENSALISM•One species benefits and the other is unaffected.•Ex) barnacles on a whale

MUTUALISM•A symbiotic relationship in which all

participation species benefit.•Micorrhizae with plants and fungi absorbs

nutrients for itself and the plant. • Both organisms benefit Flowers and insects