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Symbiosis
SYMBIOSIS
• What is symbiosis?
• What are the different kinds of symbiosis?
• Examples of symbiosis
What is symbiosis?
The act of living together
What it means:
•Two organisms that live together
temporarily or for a longer time
•At least one of the organisms
benefits from the relationship
Symbiosis is a close relationship
between two or more different
species.
Mutualism
• Mutualism is the type of symbiosis
between two organisms living together
where each one benefits from the other.
Moray Eel with Cleaner
Fish
Moray Eel gets a
clean mouth
Cleaner Fish gets
a meal
Mutualism: both
benefit
Clown fish with
anemone
I’m Nemo!
Clown fish
gets
protection
Anemone get
a meal
Anemone receives a meal from scraps and the
small fish lures in larger fish for the anemone
Antelope with Oxbird
Antelope
gets rid
of
parasites
Oxbird
gets a
meal Mutualism:
both benefit
Commensalism
• Commensalism is a symbiotic relationship in
which two organisms live together and one
organism benefits while the other is not
affected.
Commensalism
• Moss growing on
a tree is an
example of
commensalism.
The moss does
not harm or help
the tree but is
itself provided
with a place to
live.
Cattle with cattle egrets
Cattle stir up
insects as
they eat
grass
Egrets hang
around and
Commensalism: one benefits, eat insects
one is unaffected
Parasitism
• In parasitism, two organisms are living
together where one organism is getting
all the benefit and the other organism
(the host) is receiving no benefit. The
host may actually be harmed.
Parasitism
• Fleas on mammals.
Parasitism
Lice may occasionally be
burdensome because of
annoyance; their
presence may cause
itching and loss of sleep.
The louse's saliva and
feces may sensitize
people to their bites,
thereby exacerbating the
irritation and increasing
the chance of secondary
infection from excessive
scratching.
Parasitism
Mosquitos are parasites!
Parasitism
Heartworms
live in
animal
hearts
Predation
An interaction
in which one
organism hunts
and kills
another for
food.
Competition
The struggle
between
organisms to
survive in a
habitat with
limited
resources
What are the
different kinds of
symbiosis?
Mutualism Commensalism Parasitism
both
organisms
benefit
one
organism
benefits
one
organism is
unaffected
one
organism
benefits
one
organism is
harmed
The End!
A DUNG
BEETLE’S WORK
IS NEVER DONE!
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Symbiosis
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Symbiosis
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Tab Labels
•
•
•
•
•
Mutualism
Commensalism
Parasitism
Predation
Competition
Inside each Tab
• Picture
• Definition
• Example