Kingdom Monera

Short Definition

Kingdom Monera includes all prokaryotic, unicellular organisms like bacteria and cyanobacteria.

Detailed Explanation

Monerans are the simplest and oldest forms of life. They lack a true nucleus and membrane-bound organelles. Most are microscopic and unicellular, although some form colonies.

Characteristics

• Prokaryotic cells (no nucleus)
• Unicellular (single-celled)
• Cell wall present
• Reproduce asexually by binary fission
• Some are autotrophic, others heterotrophic

Examples

• Bacteria
• Cyanobacteria (blue-green algae)

Importance

Monerans play a role in nitrogen fixation, decomposition, and some cause diseases while others are used in biotechnology.