Transcript Ecosystems: Symbiotic Relationships

What do you notice/know about
these pairs of organisms?
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Barnacle/whale
Clown fish/anemone
Bird/tree
Dog/flea
Horshoecrab/shorebird
Deer/tick
Shark/cleaner fish
Cowbird/buffalo
Symbiosis
• When two species of
organisms live in
close physical contact
with each other.
Commensalism
• A relationship in
which one species
gets food or shelter
from another species
without seriously
harming that
organism or providing
any benefits in return.
Mutualism
• A relationship in
which two different
species live in a
symbiotic way where
both species benefit
and are dependent
upon the relationship.
Parasitism
• A relationship
between two species
in which one species
(the parasite)
nourishes itself to the
harm of the other
species (the host).
(One is helped, one is
harmed).
Summarize
• When I tell you to:
• CALL OUT, in the
order of the slides,
the THREE types of
Symbiosis!!!
• Remember: Not too
loud, not too soft, not
too fast, and not too
slow.
Putting it all together!!!
• Now, we will watch some video clips that
portray ‘symbiotic relationships’.
• You need to take FOUR (4)-Column Notes
in your journal during the videos.
Putting it all together!!!
• Pick a partner, next to you OR beside you.
• Decide who is going to be “A” and who is
going to be “B”.
• Partner A: Tell B the definition of
Commensalism.
• Partner B: Give A any example of
Commensalism that you can think of.
Write it on the whiteboard!
Putting it all together!!!
• Pick a partner, next to you OR beside you.
• Partner B: Tell A the definition of
Mutualism.
• Partner A: Give B any example of
Mutualism that you can think of. Write it
on the whiteboard!
Putting it all together!!!
• Pick a partner, next to you OR beside you.
• Partner A: Tell B the definition of
Parasitism.
• Partner B: Give A any example of
Parasitism that you can think of. Write it
on the whiteboard!
Talk to your “partner”.
• Make sure you BOTH know the answer to
the Essential Question!
• EQ: What is the difference between
commensalism, mutualism, and
parasitism?
Answer on your own. Write answers on
BACK of Symbiosis Data Table
1. What is the difference between
commensalism, mutualism, and
parasitism? (Make three columns).
2. Give ONE example of commensalism,
mutualism, and parasitism.
3. Why is symbiosis important to an
ecosystem?