Question

The biotic elements of an ecosystem include:

1) rocks and other non-living parts of a habitat
2) disturbance,such as forests fires
3)plants,such as trees and flowers
4) all of these choices are correct

Answer 1

3)plants,such as trees and flowers

Step-by-step explanation:

Biotic resources are those which are obtained from nature and have life while abiotic resources are those which is made of non-living components. Here, rocks, fires are non-living so they come under abiotic. Plants respire so they are biotic elements.

Hope it helps.

If you have any query, feel free to ask.