Question

Why is the two-kingdom classification inadequate?

Answer 1

Carolus Linnaeus gave a two-kingdom system dividing animal and plants but it had some drawbacks like

• It cannot differentiate between prokaryotic and eukaryotic organisms.
• Many organisms fall in both categories.

Later, five kingdom classification was proposed on the basis of:

• Cell structure
• Thallus organization
• Mode of nutrition
• Source of nutrition
• Mode of reproduction
• Body complexity
• Phylogenetic relationship