Question

a cell that lacks membrane - bound organelles and a nucleus can be called a(n)
options: nucleoid, endosymbiotic cell, eukaryotic cell, prokaryotic cell
(diagram of a bacterial cell with labels: plasmid dna, chromosomal dna, ribosomes, fimbriae, capsule, cell wall, membrane)

Explanation:

Prokaryotic cells are defined by the absence of a nucleus and membrane - bound organelles. The other options: nucleoid is a region in a prokaryotic cell (not the cell type), endosymbiotic cell relates to a theory of organelle origin, and eukaryotic cells have a nucleus and membrane - bound organelles. So the cell described in the question is a prokaryotic cell.

Answer:

prokaryotic cell.