not all relationships among organisms involve food. many organisms live together and share resources...
TRANSCRIPT
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Symbiosis
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Symbiosis
Not all relationships among organisms
involve food. Many organisms live
together and share resources in other ways. Any close
relationship between species
is called symbiosis.
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3 Types of Symbiosis
Mutualism Commensalism Parasitism
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Mutualism
Mutualism – A symbiotic relationship in which both
species benefit.
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Cowbirds and Large Animals
The cowbird benefits by eating the ticks and mites off the large animal. The large animal benefits from have the parasites removed from them. The birds can also warn them of danger.
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Bees and PollenBees receive
nectar from the flowers in order to make honey. As the bees collect
nectar, they collect pollen on their
body. As they fly to another flower, they pollinate it by dusting the pollen
on the flowers stamen.
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Mutualism Examples
Egyptian Plover Bird and crocodiles
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Mutualism Examples
Goby Fish and Shrimp (where the shrimp digs and cleans up a burrow and the fish warn the almost blind shrimp against predators.)
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Picture of Gobi Fish/Shrimp
Working together!!
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Commensalism Commensalism – A symbiotic
relationship in which one organism benefits and the other is not affected.
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Clown Fish and Sea Anemones
The clown fish is immune to the stings of the sea anemones tentacles. The clown fish makes its home in the tentacles for protection. The clown fish gets shelter, but the sea anemone gets nothing.
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Shark and Remora
The remora hangs around the shark picking up any scraps it may leave. The remora gets food while the shark gets nothing.
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Remora – see the sucker where it attaches to the shark?
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Commensalism
Barnacles adhering to skin of a whale – Barnacles get a free ride, whale not
affected.
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More barnacles on a whale!
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Parasitism
Parasitism – A symbiotic relationship in which one
organism benefits but the other is harmed.
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Tapeworm and Humans(parasite/host)
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Tapeworms and Humans
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Tapeworms and Humans
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Tapeworms and Humans
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Ticks (tick=parasite, dog=host)
Tick attaches to dog and eats dog’s blood. Tick is a parasite – it is benefitting while it is hurting the host, the dog. Tick will not kill dog because it wants to live off of dog for a very long time.
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Tick
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Even Athletes foot is a parasite
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Parasitism (laying its eggs to feast on the caterpillar)
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Parasitism
Mosquitoes
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Leeches
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Symbiosis
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Predator/Prey Relationship
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Predator and Prey
An organism’s niche includes how it avoids being eaten and how it finds or captures its food. Predators are
consumers that capture and eat
other consumers. The prey is the
organism that is captured by the
predator.
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Predator and Prey
The deer is being eaten by the python. It is prey.
The python has captured and is eating the deer.
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Predator and Prey
Predator
Prey
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Predator and Prey
PredatorPrey
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Predator and Prey
Prey Predator
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Predator and Prey
This alligator is the predator. It eats the python.
This python is the prey. It is eaten by the alligator.
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Predator and Prey
This python swallowed the alligator. It is the predator.
This alligator was swallowed by the python. It was the prey.
The alligator did get some revenge. The meal was too big for the python and caused it bust.
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Lynx vs. Hare
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Predator/Prey Relationship
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Predator/Prey Relationship
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Predator/Prey RelationshipThe presence of predators usually increases the number of different
species that can live in an ecosystem. Predators limit the size of prey populations. As a
result, food and other resources are less likely to
become scarce, and competition between species
is reduced.
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Your assignment:
Draw pictures of each type of symbiosis.
Follow your instructions on your paper! If you don’t finish, it is homework!