Practice question

Heterotrophic bacteria are by far the most abundant type of bacteria found in nature. As highlighted in the NCERT textbook, the vast majority of heterotrophic bacteria function as crucial decomposers. They break down complex dead organic matter into simpler substances, effectively recycling nutrients back into the ecosystem. Their immense biochemical activity is vital for environmental sustainability and is also harnessed heavily in human affairs (e.g., making curd, antibiotics).