Transcript 2015 symbiosis - Cobb Learning

Mind Stretcher – copy yellow
In India, the chital, a small deer, has trouble finding
enough grass to eat during the dry season. This
deer relies on a certain type of messy-eating
monkey. The deer have good eyesight, hearing,
and sense of smell.
1.
How do you think the monkeys benefit the deer?
2.
How do you think the deer benefit the monkeys?
3.
What type of relationship is this?
commensalism/mutualism/parasitism
What is symbiosis?
Literal definition:
the act of living together
What it means:
A close, long-term association between
individuals of two different species.
**One species ALWAYS Benefits!!
What are the different kinds of symbiosis?
Mutualism Commensalism Parasitism
both organisms
benefit
one organism
benefits
one organism
benefits
one organism
is unaffected
one organism
is harmed
Example 1:
Acacia plant and Ants
Ants eat the
sweet
secretion from
the plant.
Ants swarm and
attack any
animal that tries
to eat the plant
Mutualism: both benefit
Example 2:
Moray Eel with
Cleaner Fish
Moray Eel gets a
clean mouth Cleaner
Fish gets a meal
Mutualism: both benefit
Example 3:
Cattle with cattle egrets
Cattle stir up
insects as
they eat grass
Egrets hang
around and
eat insects
Commensalism: one benefits, one is unaffected
Example 4:
Clown fish with anemone
Clown fish gets
protection, nest
site, and food.
Anemone gets
cleaning,
protection, and a
lure to attract fish
Mutualism: both benefit
Example 5:
Antelope with Oxbird
Antelope
gets rid of
parasites
Oxbird
gets a
meal
Mutualism: both benefit
Example 6:
Taenia worm in human eye
Worm infects
human blood
stream
Human may
go blind
Parasitism: one benefits, one is harmed
Example 7
Fleas and Dogs
The fleas use the
dogs blood as
food.
The dog gets
bites and sores
from the fleas.
Parasitism: one benefits, one is harmed
1. Clownfish live among
the venomous tentacles
of a sea anemone. They
are protected from
predators, and they keep
the anemone clean.
2. Barnacles attach
themselves to the shells
of crabs. The barnacles
receive a home. The crab
is unaffected.
3.Bees use flower nectar
for food, and they carry
flower pollen to other
flowers, allowing the
flower to reproduce.
4. Dutch elm disease is
caused by a fungus that
grows and feeds on elm
trees. The fungus destroys
the trees.
5. Orchids grow in tree
branches. They receive
light, and their roots get
water from the air. The
tree is not affected.
6. Small mites live on your
skin, eating dead skin cells.
You don’t even notice.
7. Tapeworms live in the
intestines of cats and
absorb nutrients from the
food cats eat. The cats do
not get enough nutrients.
8. Oxpeckers feed on ticks
found on a rhinoceros.
Oxpeckers get food and
the rhinoceros gets
cleaned.
9. A flea feeds on a
mouse’s blood to the
mouse’s detriment.
Exit Ticket

List the three types of symbiosis and give
an example of each.