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IDENTIFY SYMBIOSIS, INCLUDING COMMENSALISM, MUTUALISM, AND PARASITISM

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Presentation on theme: "IDENTIFY SYMBIOSIS, INCLUDING COMMENSALISM, MUTUALISM, AND PARASITISM"— Presentation transcript:

1 IDENTIFY SYMBIOSIS, INCLUDING COMMENSALISM, MUTUALISM, AND PARASITISM
Shaping an Ecosystem BIOLOGY OBJECTIVE: IDENTIFY SYMBIOSIS, INCLUDING COMMENSALISM, MUTUALISM, AND PARASITISM

2 Vocabulary Commensalism Competition Competitive Exclusion Principle Habitat Mutualism Niche Parasitism Predation Symbiosis

3 What is a Niche? AN ORGANISM’S NICHE INCLUDES:
A NICHE IS THE ROLE OF AN ORGANISM IN ITS ENVIRONMENT. AN ORGANISM’S NICHE INCLUDES: • WHAT IT EATS • WHAT EATS IT / HOW IT DEFENDS ITSELF • HOW AND WHEN IT REPRODUCES • HOW IT INTERACTS WITH OTHER ORGANISMS

4 HOW IS A NICHE DIFFERENT FROM A HABITAT?
What is a Niche? HOW IS A NICHE DIFFERENT FROM A HABITAT? A HABITAT IS JUST THE PLACE AN ORGANISM LIVES, BUT A NICHE INCLUDES THE ORGANISM’S INTERACTION WITH OTHERS.

5 What is competition? TWO OR MORE ORGANISMS THAT TRY TO USE THE SAME RESOURCE AT THE SAME TIME.

6 What is the competitive exclusion principle?
NO TWO SPECIES CAN HAVE THE SAME NICHE AT THE SAME TIME

7 ONE ORGANISM (PREDATOR) CATCHES AND EATS ANOTHER ORGANISM (PREY)
What is predation? ONE ORGANISM (PREDATOR) CATCHES AND EATS ANOTHER ORGANISM (PREY)

8 A RELATIONSHIP IN WHICH TWO ORGANISMS LIVE CLOSELY TOGETHER.
What is symbiosis? A RELATIONSHIP IN WHICH TWO ORGANISMS LIVE CLOSELY TOGETHER.

9 What is mutualism? A. MUTUALISM: BOTH SPECIES BENEFIT
EXAMPLE: AN INSECT POLLINATING A FLOWER

10 What is commensalism? B. COMMENSALISM: ONE ORGANISM BENEFITS AND THE OTHER IS NOT AFFECTED. EXAMPLE: BARNACLE LIVING ON A WHALE.

11 EXAMPLE: FLEAS LIVING ON A DOG
What is parasitism? C. PARASITISM: ONE SPECIES (PARASITE) LIVES IN OR ON ANOTHER SPECIES (HOST) EXAMPLE: FLEAS LIVING ON A DOG


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