Bacterium -

Bacteria play a critical role in maintaining the planet's balance:

Many use flagella for movement or pili to adhere to surfaces or exchange genetic material. 2. Reproduction and Growth bacterium

Common forms include cocci (spherical), bacilli (rod-shaped), and spirilla (spiral). Bacteria play a critical role in maintaining the

Bacteria are generally categorized by their shape and the composition of their cell walls: bacteria are used to produce yogurt

In the food industry, bacteria are used to produce yogurt, cheese, pickles, and sauerkraut.

Scientists use a Gram stain to classify them. Gram-positive bacteria have a thick peptidoglycan layer that retains purple dye, while Gram-negative bacteria have a thinner layer and an outer membrane, appearing pink.