Answer:cell is the basic unit of life.
A cell may be unicellular or multicellular
Explanation:
The answer is E because heart is circulatory and brain is part of your nervous system.
Transmission electron microscope produces the image through a beam of electrons. It is most useful to inspect the morphology, cyrstallization, and magnetic characteristics of a certain sample.
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It is called jagged gaphene i think
A virus is not a bacteria, but it is caused by a bacteria. A virus causes the immune system to weaken.
