Warm Up 1.Can you think of examples of relationships where both people/ organisms benefit? 2.Can you think of examples of relationships where one organism benefits while the other is harmed?
Transcript
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Warm Up 1.Can you think of examples of relationships where both
people/ organisms benefit? 2.Can you think of examples of
relationships where one organism benefits while the other is
harmed?
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Symbiotic Relationships An interaction between organisms where
at least one organism benefits from the relationship.
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Types of Symbiotic Relationships COMMENSALISM MUTUALISM
PARASITISM
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Good for you, good for me ! MUTUALISM Example: Clownfish and
Anemone The anemone is poisonous, but the clownfish has a special
coating. The anemone protects the clownfish and the clownfish
cleans the anemone.
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COMMENSALISM Good for you, doesnt bother me! Example: Remora
and Shark A remora attaches to a sharks body. It travels with the
shark and feeds on the sharks leftovers. This does not hurt OR help
the shark.
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Good for you, hurts me! Parasitism Example: Botfly and Host Bot
flies lay their eggs in the skin of mammals. The larvae eat the
hosts skin until they are ready to fly away.
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A wasp stings a caterpillar and injects its eggs. The eggs
hatch and devour the caterpillar from the inside. Eventually they
emerge when they transition from larvae to adult. The wasps could
not survive without caterpillars.
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THE THREE SYMBIOTIC RELATIONSHIPS ARE...
PARASITISMMUTUALISMCOMMENSALISM EXTRA PRACTICE ACTIVITY GO BACK TO
SPECIFIC QUESTION Click on a Picture Below to Learn About the
Relationship EXIT
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PARASITISM Is a relationship where an organism LIVES IN OR ON
its Host The Parasite BENEFITS The Host is HARMED For example, the
tick in the picture above is a parasite. It benefits by extracting
blood from its host. EXIT
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Is a relationship between the host and an organism, where BOTH
organisms benefit and NEITHER is harmed. For example, the host
flower benefits by being pollinated by the butterfly. The butterfly
benefits from the nectar that it gets from the flower. Mutualism
EXIT
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Go Back To
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COMMENSALISM One organism benefits by receiving transportation,
housing, and/or nutrition The host is not helped or harmed. For
example, barnacles receive transportation from the host whale. The
whale is not helped or harmed by the barnacles. EXIT
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EXTRA PRACTICE ACTIVITY In the following activity, you will be
given a picture scenario. Identify and select the symbiotic
relationship (parasitism, mutualism, or commensalism) represented
in the picture. EXIT
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ADVANCE TO NEXT SLIDE RETURN TO PREVIOUS SLIDE GET HELP,
DEFINITION QUIT ACTIVITY EXIT SLIDE NAVIGATION INSTRUCTIONS
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In this photo the cleaner fish receives nourishment by dining
off of the parasites and remaining food debris in the eels mouth.
Is this an example of PARASITISM MUTUALISM COMMENSALISM
HELPEXIT
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Thats CORRECT! Keep up the great work! EXIT
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SORRY MAN, TRY AGAIN EXIT SORRY MAN, TRY AGAIN
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Clownfish are frequently found in the tentacles of sea
anemones. Sea anemones capture their prey by paralyzing them with
their tentacles. However, the clownfish produces a mucus that
prevents the tentacles from harming it. By dwelling amongst the
tentacles the clownfish receives a protected home. This
relationship is an example of PARASITISMMUTUALISMCOMMENSALISM
HELPEXIT
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SORRY MAN, TRY AGAIN
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Thats CORRECT! Keep up the great work! EXIT
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The birds in the picture are munching on tiny parasitic insects
located on the rhino. The relationship between the birds and the
rhino is an example of EXIT PARASITISM MUTUALISM COMMENSALISM
HELP
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SORRY MAN, TRY AGAIN EXIT
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Thats CORRECT! Keep up the great work! EXIT
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Lampreys are primitive fish with limited digestive systems.
They attach to and feed on the body fluids of fish with more
advanced digestive systems, often leading to the death of the host
fish. This relationship is an example of EXIT PARASITISM MUTUALISM
COMMENSALISM HELP
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SORRY MAN, TRY AGAIN EXIT
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Thats CORRECT! Keep up the great work! EXIT
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Orchids grow on the branches of high trees. These orchids get
more water and sunlight than those on the ground. The tree is
unaffected by the orchids presence. This relationship is an example
of EXIT PARASITISM MUTUALISM COMMENSALISM HELP
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SORRY MAN, TRY AGAIN EXIT
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Thats CORRECT! Keep up the great work!
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Cowbirds lay their eggs in other birds' nests. The hatched
cowbird pushes the host eggs out of the nest and eat all the food
the host parents bring. Parasitism
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In this interaction, the flower becomes pollinated by the
insect, while the bee receives food in the form of pollen and
nectar MUTUALISM
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The Tickbird feeds off the ticks and flies that live on the
hide of the African Black Rhinoceros. This helps the Rhino stay
healthy and clean. MUTUALISM
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#1 The moss uses the water and nutrients on the tree to grow.
The tree grows unaffected. COMMENSALISM
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Hermit Crab and Snail A hermit crab lives in shells that are
made and then abandoned by snails. This neither harms nor benefits
the snail.
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Mosquitoes suck the blood from humans for food. Humans receive
a bite and their skin becomes inflamed. Parasitism
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Curie
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Clownfish live in a sea anemones tentacles. Clownfish clean the
anemone. The tentacles also protect the Clownfish. MUTUALISM
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Shitake Mushrooms (fungus) absorb sugars and starches made by
the birch tree. The tree is unharmed. Commensalism
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The horsehair worm starts life as an egg laid in a puddle. The
puddle dries out and a grasshopper eats the egg. The egg hatches
and burrows through the gut of the grasshopper into its body
cavity. The worm feeds off the nutritious blood of the insect and
grows until it reaches adulthood. Then it starts producing
chemicals which take over the brain of the insect and causes the
insect to find water. The grasshopper drowns and then worm then
exits the grasshopper and lives in the puddle, mating and laying
more eggs. The cycle is repeated. Parasitism
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Algae grows on the Tree Sloths fur. These algae help to
camouflage the sloth against the tree. Commensalism
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The wasp stings and paralyzes the spider and lays an egg on it.
The larvae will consume the still-living spider from the inside,
killing the spider and allowing the wasp to grow. Parasitism
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The moss uses the water and nutrients on the tree to grow. The
tree grows unaffected. Commensalism