Bacteria Now

Bacteria are among the oldest and most successful life forms on Earth. These single-celled microorganisms are found everywhere—from deep-sea hydrothermal vents to the human gut—and play a critical role in maintaining the planet's ecosystems. 1. Anatomy and Structure

A protective layer made of peptidoglycan (a mix of sugars and amino acids). bacteria

Unlike animal or plant cells, bacteria are . They lack a nucleus and membrane-bound organelles. Their structure typically includes: Bacteria are among the oldest and most successful

Your body hosts trillions of bacteria that help digest food, produce vitamins (like B and K), and train your immune system. produce vitamins (like B and K)