Question

Differentiate between unicellular organisms and multicellular organisms.

Answer 1

Definition

1. Unicellular organisms contain only a single cell in their body.
2. Multicellular organisms contain many cells in their body.

Differences

S. no.	Unicellular organisms	Multicellular organisms
1.	These organisms have shorter life spans.	These organisms have long life spans.
2.	Reproduction is carried out by a single cell.	Reproduction is carried out by germ cells only.
3.	They do not show division of labor.	division of labor is present.
4.	All activities of the organism are performed by one cell.	Different cells perform different activities.
5.	Example. Bacteria, amoeba.	Higher plants, fungi, higher animals.