Transcript Relationships - Campbell County Schools

Relationships
How do different species affect one
another?
Symbiosis
A close relationship between the
individuals of two (or more)
different biological species
Three types: mutualism,
commensalism, and parasitic
relationships
Commensalism
A type of relationship between two
individual organisms where one
organism benefits and the other
organism is unaffected
Mutualism
A type of relationship between
organisms where both organisms
benefit from the relationship
Parasitism
A type of relationship between
organisms where one organism
benefits and the other organism is
harmed by the relationship
Important Things to Remember
• All species interact with other
species around it and the habitat
around it
• A change to one species can affect
another species or habitat
• A change in a habitat can affect one
or more species
Army Ants & Birds
Army Ants & Birds
• When army ants march
in a line, they stir up
insects that make it
easier for the birds to
see & eat.
• Commensalism
Fungus & Algal Cells (in lichens)
Fungus & Algal Cells (in lichens)
• Both the fungus and
the algal cells use each
other in the structure
of the lichen
• Mutualism
Squirrel & Tree
Squirrel & Tree
• A squirrel gets its food
from the acorns from a
tree
• Commensalism
Tree & Fungus
Tree & Fungus
• A fungus grows on the
side of a tree and could
cause the tree to
weaken or die.
• Parasitism
Tree & Mistletoe
Tree & Mistletoe
• Mistletoe grows in
trees, taking the
nourishment from the
tree (notice the color
of leaves of mistletoe
vs. tree)
• Parasitism
Humans & Microorganisms
(bacteria)
Humans & Microorganisms
(bacteria)
• Bacteria lives in
humans but can help
in some functions
such as digestions.
• Mutualism
Barnacles & Whales
Barnacles & Whales
• Barnacles find a home
on the outside of a
whale
• Commensalism
Ticks & Humans
Ticks & Humans
• Ticks latch onto
human skin and find
nourishment by
drawing blood (they
can carry infections)
• Parasitism
Cattle Egrets & Livestock
Cattle Egrets & Livestock
• Cattle egrets live
among livestock and
eat the insects that are
stirred up by the
movement of the
cattle.
• Commensalism
Humans & Cold Virus
Humans & Cold Virus
• A virus, such as the
cold virus, finds its
home in a host, such as
a human
• Parasitism
Cleaner Shrimp & Fish
Cleaner Shrimp & Fish
• Cleaner shrimp find
food on the surface of
fish, sharks, and other
sea creatures
• Mutualism
Flowers & Bees
Flowers & Bees
• A bee finds its source
of food through the
flower’s pollen and
helps pollinate the
flower so it can
reproduce
• Mutualism