Symbiosis
Transcript of Symbiosis
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Mind Stretcher - Friday(In India, the chital, a small deer, has trouble
finding enough grass to eat during the dry season. This deer relies on a certain type of messy-eating monkey that eats fruit in a tree. The deer have good eyesight, hearing, and sense of smell.)
1. How do you think the monkeys benefit the deer? 2. How do you think the deer benefit the monkeys? 3. What type of relationship is this?
Monkeys drop fruit and the deer eat it.
Deer act as an alarm system for the monkeys.
Mutualism
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What is symbiosis?
What it means: A close, long-term association between
individuals of two different species.
Literal definition: the act of living together
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What are the different kinds of symbiosis?
Mutualism ParasitismCommensalism
both organisms benefit
one organism benefits
one organism benefitsone
organism is unaffected
one organism is
harmed
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Mutualism: both benefit
Example 1: Acacia plant and Ants
Ants eat the sweet
secretion from the plant.
Ants swarm and attack any
animal that tries to eat the
plant
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Mutualism: both benefit
Example 2:
Moray Eel with Cleaner Fish
Moray Eel gets a clean mouth
Cleaner Fish gets a meal
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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
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Mutualism: both benefit
Example 4: Clown fish with anemone
Clown fish gets protection, nest site, and food.
Anemone gets cleaning,
protection, and a lure to attract
fish
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Mutualism: both benefit
Example 5: Antelope with Oxbird
Antelope gets rid
of parasites
Oxbird gets a meal
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Parasitism: one benefits, one is harmed
Example 6: Taenia worm in human eye
Worm infects human blood
stream
Human may go blind
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Example 7Fleas and Dogs
The fleas use the dogs blood as food.
The dog gets bites and sores from the fleas.
Parasitism: one benefits, one is harmed
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Exit Ticket List the three types of symbiosis and give
an example of each from the yellow sheet.