Competition: Species 1 harm, Species 2 Harm, When two organisms (same or different species) compete for the same resource (shelter, food). , Humans compete with all species for space., Predator-prey: Species 1 Benefit, Species 2 Harm, One species kills and eats another species. , Small fish on the Great Barrier Reef predate on coral polyps. , Mutualism: Species 1 Benefit, Species 2 Benefit, Both species benefit, Cape sugarbirds feed on the nectar from the king protea flower. As they reach the nectar, pollen gets stuck on their beak, so helping to pollinate the flower. , Commensalism: Species 1 Benefit, Species 2 No effect, One organism benefits and the other is unaffected. , The remora, also called a sharksucker or sucker fish, rides sharks by using a flat oval sucking disk structure on its head. , * Parasitism: * Species 1 Benefit, Species 2 Harm, One species is the parasite(benefits), which lines in and feeds on a host species (harmed). , Kangaroos are susceptible to ticks which suck their blood. The kangaroo is harmed and the tick gets food and shelter.,

Ecosystem Relationships

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