Parasitism
True or False:
Both species benefit in parasitism.
False
True or False:
In commensalism, one species benefits and the other in unaffected.
True
True or False:
Both species benefit in mutualism.
True
These organisms make their own food for energy.
Producers
True or False:
Parasites come in many different sizes.
True
A fish attaches itself to a shark for a ride across the sea. It this an example of commensalism?
Yes
Yes
Consumers
Define parasitism in your own words.
Define commensalism in your own words.
Ex) One organism benefits while the other is unaffected.
Define mutualism in your own words.
Both organisms benefit in this relationship.
These organisms break down waste materials and dead organisms for food and energy.
Decomposers
Tick: Benefits from eating the blood of a dog.
Dog: Often harmed when a tick attaches to their skin for feeding.
If you had to classify commensalism as a positive or negative symbiotic relationship, which one would you chose? Why?
Positive because there is no harm being done in this symbiotic relationship.
A bird eating the ticks off of a hippopotamus' back is an example of mutualism. Explain how both of the organisms involved benefit in this relationship.
The ticks serve as food for the bird. The hippo is protected from the harm a tick may cause when the bird removes the ticks.
What is a model that depicts the many different food chains that exist in an ecosystem?
Food web
A bird building a nest in a tree is not an example of a parasitic relationship. Why?
The tree is not harmed by the bird building a nest on its branches.
True or False:
A tree frog using a plant or tree as protection is an example of commensalism.
True. The plant or tree is unharmed.
True or False:
A dog serving as a host for heart worms is an example of a mutualistic relationship.
False
These diagrams show how living things depend on one another for food. There are several of these represented in one food web.
Food chain