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bezimeni [28]
3 years ago
9

What is the mass number of an atom that has 4 protons 4 electrons and 5 neutrons

Biology
1 answer:
Archy [21]3 years ago
7 0
The mass number is 9
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Which group of non-prokaryotic organisms studied in microbiology typically have two life cycle stages: trophozoite and cyst?
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Non-prokaryotic organisms typically have two life cycle stages: trophozoite and cyst is Protozoa.

<h3>What is Protozoa?</h3>
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