symbiosis - mr. pezzuto's science...
TRANSCRIPT
SYMBIOSIS Commensalism, Mutualism, and Parasitism
Today’s Learning Goals● SWBAT define the term
symbiosis.● SWBAT discuss
similarities and differences between mutualism, commensalism, and parasitism and provide examples of each.
DO NIZZLEDraw conclusions about the pictures below. What do they have in common, how are they different?
2-NOWWhat do you think this is? How do you think it helps describe a symbiotic relationship?How does this picture help the flower?
DO NOW (Ecosystem Review)
The diagram shows to the right, shows a food web in a salt marsh.
● Which organisms in the food web belongs to the trophic level that provides the most amount of energy to the ecosystem?
2-NOwWhich will most likely occurs if the grouse population decreases?
A. Butterfly population increases
B. Red-Tailed Hawk would increase
C. Emigration of grizzly bears and deer will decrease
D. Competition between grizzly bear and deer will increase.
What is Symbiosis?
Symbiosis: A relationship where two organisms/species are living closely together in an ecosystem.
Sym= “together” + Bio= “life”
There are THREE different types of Symbiotic Relationships.
MUTUALISM, COMMENSALISM, AND PARASITISM
Vocabulary List
Parasitism
Mutualism
Commensalism
SymbiosisPlease Draw this in your Science Binder
Mutualism● A relationship in which BOTH
organisms benefit.
● Clownfish and the Sea Anemone● Pufferfish and Cleaner Fish● Cattle Egret and Water Buffalo● Bees and Flowers
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Nemo’s First Day of School
This scene from Disney’s Finding Nemo shows an example of a real life symbiotic relationship.
- Pay close attention to the end of the clip when Marlin (Nemo’s Dad) says
“Ahh Ahh Ahh, you forgot to brush. Do you want this anemone to sting you?”
The Real “Finding Nemo”
Nemo is a Clownfish.
He lives in a Sea Anemone (a close relative of a coral and jellyfish).
They both live in a symbiotic relationship, and both help each other.
Commensalism ● A relationship in which one
organism BENEFITS and one organisms is UNHARMED
● Bird in a tree● Burdocks attaching to animals● Barnacle on a Turtle/Whale
Parasitism● A relationship between two
organisms in which one BENEFITS and the other is HARMED
● A tick feeding off of a dog. ● Mosquito biting a human’s
skin.● The Bot Fly laying their
eggs inside a mammal for protection.
● Tapeworms● Parasitic Fungi video.
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Types of Symbiotic Relationships
Organism 1 Organism 2
Mutualism Helped (+) Helped (+)
Commensalism
Helped (+) Not Affected(0)
Parasitism Helped (+) Hurt (-)
Scenario #1● Goby Fish and Shrimp
● The shrimp digs and cleans a burrow in the sand in which both the shrimp and goby fish live. The shrimp is almost blind leaving it vulnerable to predators when outside its burrow. In case of danger the goby fish touches the shrimp with its tail to warn it.
● Goby Fish : Positive/Negative/Unaffected● Shrimp: Positive/Negative/Unaffected
● Which type of symbiosis is this?
Scenario #2● Tapeworm and Dog
● The tapeworm grows in the dog’s intestine and feeds on digested food the dog has eaten robbing the dog of nutrients.
● Tapeworm: Positive/Negative/Unaffected● Dog: Positive/Negative/Unaffected
● Which type of symbiosis is this?
Scenario #3● Humans and Chickens
● The chickens lay eggs, humans eat the eggs, chicken are unaffected.
● Humans: Positive/Negative/Unaffected● Chicken: Positive/Negative/Unaffected
● Which type of symbiosis is this?
Scenario #4● Sucker Fish and Shark
● The sucker fish attaches (…or “sucks”) to the sharks belly and feeds off of scraps that the shark eats. The shark is not harmed.
● Sucker Fish: Positive/Negative/Unaffected● Shark: Positive/Negative/Unaffected
● Which type of symbiosis is this?
Scenario #5● CLOWNFISH and SEA ANENOME
● The clownfish lures predators into the sea anenome, providing a food source for the anenome. The anenome provides the clownfish with shelter and protection from predators.
● Clownfish: Positive/Negative/Unaffected● Sea Anenome:
Positive/Negative/Unaffected
● Which type of symbiosis is this?
Ecosystem Interactivehttp://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/Ecosystem.swf
Predator-Prey● One animal is the
hunter, the other is the hunted. It's what we have been looking at in the trophic pyramid.
Camouflage● Defense mechanism
used by prey to avoid predators.
● Predators can also use
camouflage to stealthily sneak up on prey.
http://youtu.be/XpdoDBYuHIA
http://youtu.be/PmDTtkZlMwM
DO NOW: Explain what's happening in this picture. How does it relate to symbiosis?
Competition ● When two
organisms compete (fight) over a prized resource.
http://youtu.be/qDvFdj-pFMc
http://youtu.be/DRxsP2YMaOI
Can you think of more…..
● MUTUALISM RELATIONSHIPS
● COMMENSALISM RELATIONSHIPS
PARASITISM RELATIONSHIPS
Ticket to Leave
Which type of symbiotic relationship would you classify this as?
