What is symbiosis? Examples of symbiosis.

Think about it… What is the Mitochondrial Endosymbiotic Theory?: Break it down Mitochondiral- it involves a mitochondria (think back to cell organelles) Endosymbiotic- has endo-meaning inside and bio meaning livinging (i.e. living inside living things)

Endosymbiotic Theory Basically a big cell took in a small cell and they lived happily ever after.

Literal definition: the act of living together What is symbiosis? Literal definition: the act of living together What it means: Two organisms that live together Temporarily or for a longer time At least one of the organisms benefits from the relationship

What are the different kinds of symbiosis? Mutualism Commensalism Parasitism both organisms benefit one organism benefits one organism benefits one organism is unaffected one organism is harmed

Also Symbiosis Competition- an interaction between organisms or species in which the fitness of one is lowered by the presence of another. In other words: struggle between living things for resources Examples of resources: food, space, shelter, mate, etc.

Parasitism: one benefits, one is harmed Example 1: Acacia plant with ant galls Ants lay eggs on acacia tree Acacia covers the infected area with brown flesh [gall (similar to a scab)] Parasitism: one benefits, one is harmed

Mutualism: both benefit Example 2: Moray Eel with Cleaner Fish Moray Eel gets a clean mouth Cleaner Fish gets a meal Mutualism: both benefit

Competition: both are struggling for food and space Example 3: The treecreeper and the scrubwren The tree- creeper lives in the canopy of trees is spending time on the ground with the scrubwren Competition: both are struggling for food and space

Commensalism: one benefits, one is unaffected Example 4: Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects Commensalism: one benefits, one is unaffected

Commensalism: one benefits, one is unaffected Example 5: Clown fish with anemone Clown fish gets protection Anemone is unaffected Commensalism: one benefits, one is unaffected

Mutualism: both benefit Example 6: Antelope with Oxbird Antelope gets rid of parasites Oxbird gets a meal Mutualism: both benefit

Competition: both struggle for resources Example 7: Flamingo Members of the same flamingo species striving for a mate, food or space. Competition: both struggle for resources

Parasitism: one benefits, one is harmed Example 8: Taenia worm in human eye Worm infects human blood stream Human may go blind Parasitism: one benefits, one is harmed

Just for Fun…More PARASITES!!! HEARTWORM Baylisascaris procyonis

ELEPHANTIASIS

GUINEA WORM

TAPEWORM