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Interactions between Organisms

Interactions between Organisms. Quick review. List all of the biotic & abiotic factors. Biosphere. What is the portion of the earth that supports life called? Give 2 examples of abiotic factors. What do you call the role a species plays in its environment?. . Niche. Community.

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Interactions between Organisms

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  1. Interactions between Organisms

  2. Quick review

  3. List all of the biotic & abiotic factors

  4. Biosphere • What is the portion of the earth that supports life called? • Give 2 examples of abiotic factors. • What do you call the role a species plays in its environment?  Niche

  5. Community • What is formed by several populations that interact with each other? • What do you call a community and its abiotic factors? • List the levels of biological organization from smallest to largest. Ecosystem OPCEB

  6. Community Interactions Organisms interact in order to obtain energy and resources necessary to stay alive

  7. Competition Organisms of the same or different species attempt to use a limited resource in the ecosystem

  8. Predation An interaction in which one organism captures and feeds on another organism.

  9. Symbiosis • A relationship where two species live closely together • 3 types

  10. 1) Mutualism • Both species benefit • +/+

  11. Golden damselfish being cleaned by 2 different cleaner fish- both parties benefit.

  12. 2) Commensalism • One species benefits and the other is not harmed or benefited. • +/0

  13. Crab sheltering in carpet of a sea anemone

  14. 3) Parasitism • One species benefits and the other is harmed. • +/-

  15. Mosquitoes are a parasite. They benefit from our blood and we are harmed by the bite and/or transmitted disease.

  16. These are common parasites. • Lice, Hookworms, Fleas, Ticks, Leeches

  17. Quick Review

  18. One organism benefits, the other is neither harmed or benefited. • Describe commensalism. • Describe mutualism. • Describe parasitism. Both organisms benefit. One organism benefits, the other is harmed.

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