Which term is defined as a living thing that is too small to see without a microscope?

Which term is defined as a living thing that is too small to see without a microscope?

• A. Amoebas
• B. Algae
• C. Microorganism
• D. Virus

Answer: (C)

Living things that are so small you need a microscope to see them are called microorganisms. This term covers tiny, living beings like amoebas and many algae. A virus, while extremely small, isn’t considered living by the usual definition because it can’t carry out life processes or reproduce on its own without a host cell. So the best term for a living thing that’s too small to see without a microscope is microorganism.

Living things that are so small you need a microscope to see them are called microorganisms. This term covers tiny, living beings like amoebas and many algae. A virus, while extremely small, isn’t considered living by the usual definition because it can’t carry out life processes or reproduce on its own without a host cell. So the best term for a living thing that’s too small to see without a microscope is microorganism.