Question

You have seen elephants, deer, earthworms, trees and grasses. Where do they live or grow? What is the name given to this sphere? Can you describe some of the important features of this sphere?

Answer 1

We have seen elephants, deer, earthworms, trees and grasses. They live and grow on the biosphere. Important features of the biosphere are as follows:

1. The combined form of land sphere, hydrosphere and atmosphere where life is possible is called the biosphere.
2. Plants and animals are biotic elements of biosphere while soil, water, air, etc., are abiotic elements.
3. Living organisms in the biosphere display different forms of movement. Animals, birds, and insects are examples of motile organisms, as they can move from one location to another. Plants and trees, on the other hand, are largely sessile (fixed in one place), but they still exhibit movement through growth and responses to their environment, such as a plant's stem bending towards the sun (phototropism) or its roots growing towards water.