Download Symbiosis

Cleaner fish feed on parasites in a shark's mouth and
gills. Which of the following best describes the
relationship between the cleaner fish and the shark?
A competitive.
B mutualistic.
C neutral.
D parasitic.
Wildcats, such as the lynx, are predators of
rabbits. Which will MOST likely occur if a new,
aggressive species of wolf is introduced into the
ecosystem that is a predator of the lynx?
A The new species population will consume the food that the
rabbits eat.
B The population of the rabbits in the ecosystem will
increase.
C The new species population will be consumed by the lynx.
D The population of the lynx in the ecosystem will increase.
SYMBIOSIS
Living Together
Symbiotic relationships: any
relationship in which two
species live closely together
Mutualism: both species
benefit  
Commensalism: one member
benefits and the other is
neither helped nor harmed
Parasitism: one organism
lives on or inside another
organisms and harms it. 
As a “hermit” I find predators pesky to deal with on my long
wanderings. So I load an anemone on my back and scuttle over to the
neighboring reef-hey, it's always safer for me to travel with a living
shield! And I suppose the anemone likes the idea of a change of
environment and more food to choose from.
The anglerfish's natural predatory skills makes it a choice host
for me-there are plenty of nutrients for a little bacterium like
me inside its body. Of course, the anglerfish couldn't
get nearly enough food on its own, so I give off a nice gentle
glow that it can use for the purpose of luring more prey.
I am a bacterium that lives on the roots of the soybean plant. I
take nitrogen from the soil and make it available for the plant
to grow. In return, the soybean plant provides me with
carbohydrates for food. What type of symbiotic relationship am
I in?
I am a barnacle living on the skin of a whale. I adhere to the outer
layer of the whales thick skin, so I go wherever he goes. Living on the
whale gives me a free ride to many more food sources that I would not
have been able to get to without some help. The whale is not harmed
by me since I do not interfere with his life, not irritate his skin, but I
don't do anything to help him out. he doesn't seem to mind me hitching
a ride, so it's cool. What type of symbiotic relationship am I in?
I am an algae, being held in place
by a fungus. Together, we are
called a lichen. Man, do we have it
good. I feed him nutrients that I
create through the process of
photosynthesis.
(That's right, I'm a producer). In
return, he holds me in place so I
can gather sunlight without being
pushed around by the wind. We are
like two best friends, helping each
other out in need. What type of
symbiotic relationship am I in?
I am a flea that lives on the back of a dog. I feed off of and
find my home in the skin of many different animals. The dog
does his best to try and get rid of me by scratching and
biting, but I just keep digging further and further. What type of
symbiotic relationship am I in?
I am an epiphyte plant that grows
up on the tall plants of the rain
forest. If it wasn't for my host
plant I wouldn't be able to reach
the sunlight due to the heavy
foliage up above me.
I grow on the branches of the tall
trees, which me to bask in the
sun. Lucky for my host, I don't
interfere with his business. What
type of symbiotic relationship am
I in?