10/28/14 Life Science Pre-Test on next unit

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Presentation transcript:

10/28/14 Life Science Pre-Test on next unit Community Interaction Notes/Chart Play Good Buddies Biosphere – abiotic vs biotic

COMMUNITY INTERACTIONS limit population numbers Predation Symbiosis PARASITISM MUTUALISM COMMENSALISM Examples

One species benefits by eating an animal and the other is dead. PREDATION One species benefits by eating an animal and the other is dead. PREDATOR PREY eater eaten

THE CLOSE INTERACTION BETWEEN TWO OR MORE ORGANISMS OF DIFFERENT BIOLOGICAL SPECIES at least one member of the association benefits (gains) by the association

Both biological species benefit from the ++ SYMBIOSIS MUTUALISM Both biological species benefit from the close relationship. The hummingbird hawk moth gathers nutrients from the flower, while it helps with pollination. The sea anemone provides shelter and protection for the clownfish while the clownfish eats small invertebrates that are harmful to the sea anemone. The Nile crocodile opens its mouth for the Egyptian plover to clean it of leeches.

relationship and the other is neither harmed nor benefitting. SYMBIOSIS +0 COMMENSALISM One species benefits from the relationship and the other is neither harmed nor benefitting. The barnacles benefit by attaching themselves to the turtle's shell for a home and transportation. The turtle is not benefitting or being harmed in this relationship. The pea crab benefits from the oyster because it has a home and protection. The oyster is neither benefitting or being harmed in this relationship. The epiphytic benefits from the tree because it is exposed to more sunlight by being higher up in the canopy. The tree is not benefitting or being harmed in this relationship.

relationship and the other is harmed. SYMBIOSIS +- PARASITISM One species benefits from the relationship and the other is harmed. The wasp eggs gain a home before they are hatched and nourishment after they are hatched. The caterpillar dies as a result of this relationship. The mosquito gains nourishment while the human looses blood and is susceptible to disease. The hook worm gains nourishment in the intestines while the human is being harmed.

Biosphere Bio = Life A = without Biotic Abiotic