Question

Define the following terms and give two examples in each case.​

​(a) Symbiosis

Answer 1

Symbiosis is the interaction in which both the interacting species are benefited.​

Example:​

1. Plants need the help of animals for pollinating their flowers and dispersing their seeds. Animals in return get fruits and nectar from plants. ​

2. Lichens provide an example of symbiosis in which a fungus and a photosynthetic alga live in a symbiotic relationship.