Organisms which have a well defined nucleus with a nuclear membrane are known as
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prokaryotes
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unicellular
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eukaryotes
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multicellular
C
Correct answer
Explanation
Nucleus has a double layered covering called nuclear membrane. It is composed of DNA and protein. DNA molecules (Deoxyribonucleic acid) contain the information necessary for constructing and organising cells. Eukaryotes is the correct answer. Organisms with cells having a nuclear membrane are called eukaryotes, e.g. plants, animals.