Which term describes an organism whose cells do not have an enclosed nucleus?

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Multiple Choice

Which term describes an organism whose cells do not have an enclosed nucleus?

Explanation:
Cell organization is what this question tests: do the cells have a membrane-bound nucleus? Organisms with no enclosed nucleus are prokaryotic. In prokaryotes, DNA sits in a region called the nucleoid rather than inside a nucleus, and the cells typically lack membrane-bound organelles. Conversely, organisms whose cells do contain a nucleus enclosed by a membrane are eukaryotic. The other terms describe how organisms obtain energy or carbon: autotrophs produce their own organic matter, while heterotrophs rely on consuming others. So prokaryotic is the correct term.

Cell organization is what this question tests: do the cells have a membrane-bound nucleus? Organisms with no enclosed nucleus are prokaryotic. In prokaryotes, DNA sits in a region called the nucleoid rather than inside a nucleus, and the cells typically lack membrane-bound organelles. Conversely, organisms whose cells do contain a nucleus enclosed by a membrane are eukaryotic. The other terms describe how organisms obtain energy or carbon: autotrophs produce their own organic matter, while heterotrophs rely on consuming others. So prokaryotic is the correct term.

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