MCQ
Which of following organisms can be seen only under the microscope?
- ✓Unicellular.
- BMulticellular.
- CVertebrates.
- DAll of the above.
Most unicellular organisms are of microscopic size and are thus classified as microorganisms, for example, Phytoplankton and protozoa range from about $0.001\ mm$ to about $0.25\ mm$. Most of the multicellular organisms and vertebrates are visible to the naked eye, which means that it is possible to view them without using the microscope.
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