Question

The maintenance functions of all living organisms must go on even when they are not doing anything particular. Even when we are just sitting in a class or even asleep, this maintenance job has to go on. These maintenance processes require energy to prevent damage and break-down of cells and tissues, which is obtained by the individual organism from the food prepared by the autotrophs, called producers.

We need to water the soil in plants on a regular basis. But it ultimately reaches the leaves of the plant. Explain how this takes place.

Name the type of nutrition exhibited by Amoeba. Explain how food is taken in and digested by this organism.

The autotrophic mode of nutrition requires

What are the necessary conditions for autotrophic nutrition and what are its by-products?