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Competition, predation, mutualism.notebook November 16, 2015 The 5 basic needs of all living things All living things have 5 basic needs: 1) Sunlight 2) Air 3) Water 4) Food 5) Ideal body temperature 1 Competition, predation, mutualism.notebook November 16, 2015 How do interactions within an ecosystem affect populations in an ecosystem? The three biotic (living) interactions are: 1) Competition 2) Predation 3) Mutualism 2 Competition, predation, mutualism.notebook November 16, 2015 Competition Occurs when more than one organism tries to obtain the basic resources in the same habitat. They compete for those resources. Predation An animal that hunts other naimals for food is a predator. The animal that the predator hunts is called the prey. Predatorprey population sizes affect each other. 3 Competition, predation, mutualism.notebook November 16, 2015 Mutualism An interaction between individuals of different species that benefit both species. Ex. A bee and a flower 4 Competition, predation, mutualism.notebook November 16, 2015 Predator Prey Cycle 5
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