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1. Niche. The organism’s role in the environment What it eats and is eaten by How it finds shelter How it raises its young Reproductive strategy. 2. Competitive Exclusion P rinciple. No two species occupy the same niche at the same time. One would out compete the other :

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1 niche
1. Niche

The organism’s role in the environment

  • What it eats and is eaten by

  • How it finds shelter

  • How it raises its young

  • Reproductive strategy


2 competitive exclusion p rinciple
2. Competitive Exclusion Principle

No two species occupy the same niche at the same time.

One would out compete the other:

it would survive, the other would die


3 resource partitioning
3. Resource Partitioning

Species share the resource

Ex: different bird species eat insects from different parts of the same tree.


4 predation
4. Predation

Predator adaptations:

  • Sharp teeth

  • Claws

  • Speed

  • strength

Prey adaptations:

  • Camouflage

  • Speed

  • Plants may have toxins


5 symbiosis two organisms survive as one
5. Symbiosis-Two organisms survive as one

  • Mutualism- both benefit

  • Commensalism-one benefits, one is not affected

  • Parasitism- one benefits, one is harmed


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