Question

which organism contains a cell membrane, ribosomes, a cell wall, a dna loop, and has no nucleus?
bacteria
plant cells
virus
animal cells

Explanation:

Bacteria are prokaryotes. Prokaryotic cells have a cell membrane, ribosomes, a cell wall (in most cases), and their genetic material is in the form of a DNA loop (nucleoid) as they lack a true nucleus. Plant cells are eukaryotes (have a nucleus). Animal cells are eukaryotes (no cell wall in animal cells). Viruses are not cells (they lack cell - membrane, ribosomes, etc. in the traditional sense of cellular components).

Answer:

Bacteria