The Earth supports a remarkable variety of living organisms. This variety is called biological diversity or biodiversity.

Organisms differ in:

• Size and shape
• Body structure
• Habitat
• Nutrition
• Reproduction
• Behaviour
• Adaptations to the environment

The enormous diversity of life makes it difficult to study every organism individually. Scientists therefore group organisms according to their similarities and differences.

Why Do We Study Biodiversity?

Studying biodiversity helps us:

• Understand relationships between organisms.
• Identify and describe different species.
• Organise biological information.
• Understand evolutionary relationships.
• Support the conservation of living organisms.

Need for Classification

Classification is the systematic arrangement of organisms into groups based on their similarities, differences, and relationships.

It makes the study of living organisms easier and more organised.

Key Takeaway

Biodiversity represents the variety of living organisms. Classification helps scientists organise this diversity into manageable groups.