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COOPERATIVE INTERRELATOINSHIPS IN MISSOURI FORESTS. ECOSYSTEM. All the organisms and the non-living environment within a defined area. DESERT. LAKE. COMMUNITY. Consists of all the interacting animal populations within an ecosystem. FOOD WEB.
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ECOSYSTEM • All the organisms and the non-living environment within a defined area
COMMUNITY • Consists of all the interacting animal populations within an ecosystem.
SYMBIOSIS • Two species living together in close association over an extended time. Also called “symbiotic relationships”
3 TYPES OF SYMBIOSIS • 1. PARISITISM • 2. COMMENSALISM • 3. MUTUALISM
PARISITISM • A symbiotic relationship where the organism lives in or on their host and does harm to their general well being, sometimes parasites are fatal. • The parasite benefits, the host does not.
ONE EXAMPLE OF PARISITISM • Ticks on a deer.
COMMENSALISM • A symbiotic relationship where one species benefits, the other is not affected positively or negatively.
ONE EXAMPLE OF COMMENSALISM • Birds nesting in a tree
Certain species of millipede and silverfish inhabit the nests of army ants and live by scavenging on the refuse of their hosts, but without affecting the ants.
MUTUALISM • A symbiotic relationship where both organisms benefit from the relationship.
ONE EXAMPLE OF MUTUALISM • Bees and flowers
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