They reproduce at a faster rate. They digest food more efficiently. They move quickly along the ground. They sense predators and potential food from all directions.
I gave my students this multiple choice question: What advantage do sea stars gain from having radial symmetry?

Only one answer is correct among these 4 choices:
- They reproduce at a faster rate.
- They digest food more efficiently.
- They move quickly along the ground.
- They sense predators and potential food from all directions.

Could you tell me which one is correct?

They sense predators and potential food from all directions.