SYMBIOTIC RELATIONSHIPS WORDS 17-22 Symbiosis Mutualism Commensalism Parasitism Parasite Host
Relationships in the Ecosystem. What are the types of relationships? 1)Predator / Prey 2)Competition...
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Transcript of Relationships in the Ecosystem. What are the types of relationships? 1)Predator / Prey 2)Competition...
Relationships in the Ecosystem
What are the types of relationships?
1) Predator / Prey
2) Competition
3) Symbiosis
A) commensalism
B) mutualism
C) parasitism
Predator / Prey
Predator = animal that hunts another animal for food.
Prey = animal that is eaten by another.
Predator / Prey populations will change in response to each other’s population.
Predator / Prey
Competition
…when 2 organisms or species have the same niche they will compete for resources.
The “loser” will either have to leave, get another niche or die.
Symbiosis
…the relationship between different species living in close association with one another.
There are 3 types of symbiotic relationships.
1) Mutualism
…both organisms benefit.
EX: Lichen (moss & algae), Clown fish & sea anemone
Mutualism
2) Commensalism
…one organism benefits, the other isn’t helped or harmed.
EX: Whales & Barnacles
Commensalism
3) Parasitism
…one organism benefits (parasite), the other is harmed (host)
Parasite- organism that gets nutrients at the expense of another organism or lives on / within another.
EX: tapeworms, pinworms, ticks, etc…
Parasitism
Parasitism
The End