Question

Что такое бактерия?

Answer 1

Мельчайший организм на земле.
его очень трудно увидеть человеческим глазом.
что-бы его увидеть нужны специальные условия и вещи.
например микроскоп

Answer 2

What is a bacterium?

A bacterium is a single-celled microorganism that belongs to the domain Bacteria. Bacteria are prokaryotic organisms, which means they lack a nucleus and other membrane-bound organelles. They are among the most abundant and diverse organisms on Earth and can be found in various environments, including soil, water, and the human body.

Bacteria come in different shapes, such as cocci (spherical), bacilli (rod-shaped), and spirilla (spiral-shaped). They can be classified into different groups based on their characteristics, such as Gram-positive or Gram-negative, aerobic or anaerobic, and pathogenic or non-pathogenic.

Bacteria play important roles in various ecological processes, such as nutrient cycling and decomposition. Some bacteria are beneficial to humans, such as those involved in digestion and the production of certain vitamins. However, some bacteria can also cause diseases in humans and other organisms.