Question

How many cells are found in the organism?

Answer 1

The number of cells in an organism vary ranging from one to trillions. Based on the number of cells, the organisms can be broadly classified into two categories :

1. Unicellular organisms: These are made up of single cell. E.g, Amoeba, Paramecium etc.

2. Multicellular organisms: These are made up of many cells. E.g, Earthworm, humans, fishes etc.