Which feature is not typically found in animal cells but is common in many prokaryotic cells?

• A. Nucleus
• B. Cell Wall
• C. Mitochondria
• D. Chloroplasts

Answer: (B)

The main concept here is the structural difference between prokaryotes and animal cells, specifically the presence or absence of a cell wall. A rigid cell wall is common in many prokaryotic cells and serves to give shape and protection, often made of peptidoglycan in bacteria. Animal cells, on the other hand, rely on a flexible plasma membrane without a cell wall. This contrast is why a cell wall is the best answer for a feature not typically found in animal cells but common in many prokaryotic cells. The other features listed are organelles that animal (eukaryotic) cells have but prokaryotes generally lack, so they don’t fit the prompt as well.