SB9f Parasitism and mutualism

Question 1

What is parasitism?

Answer 1

Parasitism is a feeding relationship where the parasite (feeding organism)
benefits by feeding off a host organism, causing harm to the host.

Question 2

What is mutualism?

Answer 2

Mutualism is a relationship where
organisms that live together both
benefit from the relationship.

Question 2

What is a symbiotic relationship?

Answer 2

Symbiotic are relationships where two or more organisms interact. They
could be parasitic or mutualistic

Question 2

Give 3 examples of Parasitic relationship.

Answer 2

Tapeworm in small intestine of humans
Lice (fleas) on head
Roundworm causing elephantiasis

Question 3

Give 3 examples Mutualistic Relationship.

Answer 3

Clownfish with anemone
Cleaner fish (clean teeth)
Oxpeckers (birds eating insects from
animals)

Question 4

Critical Mutualistic Relationship

Answer 4

Coral polyps and single celled algae
The algae can survive in the water, but are better protected inside a polyp
of a coral. The algae photosynthesise and provide food for the animal
(coral). Thus, one provides food and the other shelter.