symbiosis

Question 1

Define symbiosis

Answer 1

Symbiosis occurs when two organisms of different species live (and have to live) in close association and at least one of them benefits.

Question 2

Name two types of symbiosis

Answer 2

parasitism and mutualism

Question 3

What is mutualism?

Answer 3

both organisms benefit from the association

Question 4

Give examples of symniosis and mutualism

Answer 4

1. Mutualism: Bacteria in the large intestines of humans, where the bacteria produce vitamins B and K and get food and shelter.
2. Nitrogen-fixing bacteria in the nodules of plants such as clover, where the bacteria gain food, shelter, anaerobic conditions and the clover gets nitrates.