Question

what structure is found in both eukaryotes and prokaryotes?
a membrane - bound organelles
b nucleus
c golgi apparatus
d ribosomes

Explanation:

Ribosomes are non-membrane-bound structures involved in protein synthesis, present in both eukaryotes and prokaryotes. Membrane-bound organelles (a), nucleus (b), and Golgi apparatus (c) are exclusive to eukaryotes.

Answer:

d. ribosomes