No one "invented" them. Using a microscope, bacteria were first seen in 1676 by Antonie van Leeuwenhoek.
Bactria do not hide. They exists everywhere, including inside out bodies.
bactria
they eat bactria
Bacteria are ubiquitous.
No they do not have. It is absent in prokariyotes
toxins are bactria's waste.
Bactria in the plaque
sometimes Bactria can kill microbes
Bactria
bacteria eat nothing it is in the air.
Bactria was the ancient name for a region of southwest Asia during the bronze age.Perhaps you mean bacteria, a microscopic unicellular organism; the plural is bacterium.
good Bactria