PRINCIPLES OF DISEASE. Symbiosis Relationship between 2 or more species Mutualism- both benefit,
SYMBIOSIS – two or more species live together in a close, long-term association.
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Transcript of SYMBIOSIS – two or more species live together in a close, long-term association.
SYMBIOSIS – two or more SYMBIOSIS – two or more species live together in a species live together in a
close, long-term associationclose, long-term association
•Parasitism – Parasitism – good for one species, bad for good for one species, bad for
hosthost
•Mutualism – both species benefit
Commensalism – one species Commensalism – one species benefits and the other is benefits and the other is
unaffectedunaffected
Symbiosis ActivitySymbiosis Activity
• I’m going to out you in groups of 3• You’re going to create 3 different types of
relationships from the organisms on the worksheet
• You need an example for each type of symbiotic relationship–Parasitism–Mutualism–Commensalism
Interspecific InteractionsInterspecific Interactions
CompetitionCompetition• Species directly competing for resource
-ex. In Africa, lions and hyenas compete for prey
PredationPredation• Predators have ways to find and eat their prey
examples – lions, snakes, spiders, centipedes
• Prey have ways to hide from or escape their predators
Camouflage: Poor-will (left), lizard (right)Camouflage: Poor-will (left), lizard (right)
Aposematic (warning) coloration in a poisonous blue frogAposematic (warning) coloration in a poisonous blue frog
Deceptive coloration: moth with "eyeballs"Deceptive coloration: moth with "eyeballs"
MimicryMimicry