Amicroorganism is an organism that can be seen only with the aid of a microscope. they include bacteria, protozoans, algae, and fungi. microorganisms can be harmful or beneficial. billions of in our bodies live in our intestines. they us digest our food and some make vitamins that support good health. what are these microorganisms? a) algae b) bacteria c) fungi d) protozoan

A microorganism is an organism that can be seen only with the aid of a microscope. They include bacteria, protozoans, algae, and fungi. Microorganisms can be harmful or beneficial. Billions of bacteria in our bodies live in our intestines. They help us digest our food and some help make vitamins that support good health.

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the electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, x-rays, and gamma-rays.

b is the best answer for this question.