Question

Give a detailed note on symbiosis. How is it beneficial for organisms? Explain with the help of examples. [3 MARKS]

Answer 1

Explanation: 1 Mark
Examples: 1 Mark each

Symbiosis is the relationship between two organisms in which both organisms get benefited from each other.

For example, certain fungi live in the roots of trees. The tree provides nutrients to the fungus and, in return, receives help from it to take up water and nutrients from the soil. This association is very important for the tree.
In organisms called lichens, a chlorophyll-containing partner, which is algae and a fungus lives together. The fungus provides shelter, water, and minerals to the algae.
In return, the algae provide food which it prepares by photosynthesis.