Respuesta :

All bacteria are B microscopic, which means they are only visible through the device, a microscope (since bacteria are too small to see with just the eye).

Bacillus is a rod-shaped bacteria, but it doesn't represent all bacteria living.

Bacteria aren't mulitcellular (which means they have many cells), they are single celled. They are just ONE cell themselves.  

Not all bacteria are autotrophic.

Hope this helps :) Brainliest?

Answer:

B. microscopic

Explanation: