1. What is symbiosis? Examples of symbiosis.

2. 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)

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

4. 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

5. 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

6. 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.

7. 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

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

9. 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

10. 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

11. 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

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

13. 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

14. 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

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

16. ELEPHANTIASIS

17. GUINEA WORM

18. TAPEWORM