Competition and Symbiosis NOTES

INTERACTIONS BETWEEN ORGANISMS

Competition- interaction which results when a resource is in short supply. One organism uses the resource at the expense of the other organism.

What are some resources that organisms compete for?

* Intraspecific Competition- within the same species.

* Interspecific Competition- between different species.

Which is more intense?

2 Types of Competition:

Trials of Life episode 4

Competition and Symbiosis NOTES

Intraspecific or Interspecific Competition?

Predator-Prey Relationships

Predator- organism that is doing the hunting

Prey- organism that is attacked

Competition and Symbiosis NOTES

Predator Prey Graph

Trials of Life episode 4

Symbiotic RelationshipsSymbiosis- members of different species living in close association, where at least one species benefits from

this association.

3 Types of Symbiotic Relationships:

Commensalism + / 0

Mutualism + / +

Parasitism + / -

Trials of Life episode 7

Competition and Symbiosis NOTES

Type of Symbiosis?

Gobi Fish and Shrimp

Hermit Crab and Ragworm

Hermit Crab and Sea Anemone

Commensalism

Competition and Symbiosis NOTES

Mutualism

Parasitism