Question

a scientist discovers a new organism. its cells contain a nucleus, mitochondria, and ribosomes. how should this organisms cells be classified? as a prokaryote, because it has a cell membrane. as a eukaryote, because it has a nucleus and other membrane - bound organelles. as a prokaryote, because it has ribosomes. as a eukaryote, because it is a type of bacteria.

Explanation:

Eukaryotes have a nucleus and membrane - bound organelles like mitochondria. Prokaryotes lack a nucleus and membrane - bound organelles. Ribosomes are present in both prokaryotes and eukaryotes. Bacteria are prokaryotes. Since the organism has a nucleus and mitochondria (membrane - bound organelles), it is a eukaryote.

Answer:

As a eukaryote, because it has a nucleus and other membrane - bound organelles.