1. SYMBIOSIS What is symbiosis?
What are the different kinds of symbiosis?
Examples

2. 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

3. PREDATION Organism that captures, kills and eats another ( prey)
Adaptations:
sense of smell.eyesight
web of spiders
heat sensitive pit ofrattlesnakes
Sharp teeth
Tiger stripes
Speed
climbing

4. Adaptations of Prey Ability to flee quickly Hiding- camouflage
Resembles other organisms
Colorations
Spines, thorns, foul odor
Mimicry-harmless species looks/acts like harmful one

5. Movie Examples
Example 1 9 minutes
Osprey hunting fish

6. Physical adaptations help an animal survive in its environment.
are body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.
Hey! I’m a walking stick. I look just like a stick you’d find on the ground.
Physical adaptations help an animal survive in its environment.
© A. Weinberg

7. Camouflage (use of color in a surrounding)
Physical adaptation
Camouflage (use of color in a surrounding)
The chameleon can change its color to match its surroundings. Can you do that?

9. (looking or sounding like another living organism)
Physical adaptation
Mimicry
(looking or sounding like another living organism)
The Viceroy butterfly uses mimicry to look like the Monarch butterfly. Can you tell them apart?
I’m the Viceroy!
Not poisonous
Poisonous
I’m the Monarch!

10. Herbivore eats plants Plant Adaptations:
Plant defense: Thorns, spines, sticky hares
Chemical defense-poison, irritating needles, bad taste
Medical use: morphine, atropine, codeine,

11. 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

12. Parasitism One benefits the other one harmed Parasites in the stomach
Wasps and aphids
Largest tapeworm:
The largest ever recorded in a human being was, I believe, 20 m (about 66 feet

13. 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)
Parasitism: one benefits, one is harmed

14. Parasitism: one benefits, one is harmed
Example 6: Taenia worm in human eye
Worm infects human blood stream Human may go blind
Parasitism: one benefits, one is harmed

15. Kinds of Parasites:
Ectoparasites: external parasite- tick, flea, lice leech, lamprey, mosquito
Endoparasite: bacteria, protists, tapeworms
Host Defense against a parasite:
Skin, tears, saliva, mucus, immune system
Adaptations: hooks, suckers, etc.

16. C. Competition 1. competitive exclusion 2. character displacement
3. resource partitioning

17. D. Mutualism Ex’s Protozoan and termites Plants and bees
Aphids and ants
More…

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

19. Mutualism: both benefit
Example 5: Antelope with Oxbird
Antelope gets rid of parasites Oxbird gets a meal
Mutualism: both benefit

20. E. Commensalism
Ex’s
Ex 2
EX:
Spanish moss in trees

21. Commensalism: one benefits, one is unaffected
Example 3: Cattle with cattle egrets
Cattle stir up insects as they eat grass Egrets hang around and eat insects
Commensalism: one benefits, one is unaffected

22. Commensalism: one benefits, one is unaffected
Example 4: Clown fish with anemone
Clown fish gets protection Anemone is unaffected
Commensalism: one benefits, one is unaffected

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