Answer: c not all cells have a nucleus (prokaryotic cells don’t)
Explanation:
Answer:
The nucleus at the central part of the cheek cell contains DNA. When a drop of methylene blue is introduced, the nucleus is stained, which makes it stand out and be clearly seen under the microscope.
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DNA is a COMBINATION of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base.
Answer:
The amount of ⛅ sunlight .
Explanation:
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