Types of Interactions Intraspecific relationship organisms of
the same species interact with one another Interspecific
relationship the interaction is between species of different
kind
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Determine whether the following picture/s shows an
intraspecific relationship or an interspecific relationship
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Beneficial or Harmful Relationships
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Symbiosis Living Together
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Symbiosis Means living together Symbiotic relationship may be
a)Mutualism b)Commensalism c)Parasitism
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Mutualism Kind of relationship where two organisms benefit from
each other Examples are
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Continuous Association
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Transitory Association
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Commensalism A relationship in which one species benefits while
the other is neither benefited nor harmed Commensal the organism
that benefits Host the organism which is neither harmed nor
benefited Examples are
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Barnacles and Whales Barnacles need a place to anchor. They
must wait for food to come their way. Some barnacles hitch a ride
on unsuspecting whales who deliver them to a food source. This does
not effect the whale in any way.
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The remora attaches itself to the shark and saves energy since
it doesnt have to swim, and it gets to snack on the sharks kills.
The shark doesnt get anything. Shark & Remora
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Parasitism A type of relationship where one organism benefited
while the other organism is harmed Parasite the organism that is
benefited Two kinds of parasites : internal and external Host the
organism that is harmed and it is also where the parasite lives
Examples are
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Loa Loa Worm & Human This worm infects the human blood
stream and gets a nice warm safe home there. The human may go blind
or have other complications as a result.
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Tapeworms The definitive host of the cucumber tapeworm is a dog
or a cat (occasionally a human). Fleas and lice are the
intermediate host. the dog or cat becomes contaminated when the
eggs are passed in the feces, and the flea or louse ingests the
eggs. The dog or cat (or human) is infected when they ingest a flea
or louse. Hence the importance of controlling fleas on your
pet!
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Bedbugs Bedbugs are small, nocturnal parasites that come out of
hiding at night to feed on unsuspecting humans. They feed
exclusively on blood! Their bites often result in an allergic
reaction.
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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
