bees in a hive cars on a train petals on a flower pieces in a jigsaw puzzle
I gave my students this multiple choice question: Which is the most accurate model to show how amino acids form proteins?

Only one answer is correct among these 4 choices:
- bees in a hive
- cars on a train
- petals on a flower
- pieces in a jigsaw puzzle

Could you tell me which one is correct?

cars on a train