Relationships in Ecosystems

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Relationships in Ecosystems
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Ecosystem

• Many organisms of the same species living
  together make a population.
• Many populations living together make a community
  
• Communities and the environment make up an
  ecosystem

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Relationships

• In predator-prey relationships, the predator gets
  food by killing and eating the prey.
• In competition, several organisms are trying to
  use the same resources, such as food, water,
  space, or sunlight.
• Symbiosis which are long-term, close
  relationships between species.

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3 Types of Symbiotic Relationships

• Mutualism is a relationship in which both species
  mutually benefit ex. ,
• Commensalism is a relationship in which one
  species benefits while the other species is not
  affected ex. , 0
• Parasitism is a relationship where one species
  benefits, while the other is harmed. A parasitic
  relationship usually does not kill the host, but
  does weaken it over time. ex. , -