- Sensing is performed by specialized body parts
- Radial symmetry means an animal has similar body parts dispersed in all directions around a central axis
- Hence, an animal with radial symmetry has specialized body parts for sensing dispersed in all directions around a central axis

- An animal with radial symmetry has specialized body parts for sensing dispersed in all directions around a central axis
- An animal can sense things in the direction that their specialized body parts for sensing are facing
- Therefore, an animal with radial symmetry can sense predators / food from all directions

- Avoiding predators has a positive impact on an organism 's survival
- Avoiding something requires sensing that something
- Therefore, sensing predators has a positive impact on an animal's survival

- An animal needs to eat food for nutrients
- Sensing food has a positive impact on finding food
- Therefore, sensing food has a positive impact on an animal's survival

- Sensing predators has a positive impact on an animal's survival
- Sensing food has a positive impact on an animal's survival
- Hence, better senses have a positive impact on an animal 's survival

- Better senses have a positive impact on an animal 's survival
- Being able to sense things from all directions improves something's senses
- Therefore, being able to sense things from all directions has a positive impact on an animal's survival

- An animal with radial symmetry can sense predators / food from all directions
- Being able to sense things from all directions has a positive impact on an animal's survival
- So, radial symmetry has a positive impact on an animal's survival by allowing it to sense predators / food from all directions

Therefore, radial symmetry has a positive impact on an animal's survival by allowing it to sense predators / food from all directions
Q: What advantage do sea stars gain from having radial symmetry?
Context:
- An animal can sense things in the direction that their specialized body parts for sensing are facing 
- Being able to sense things from all directions improves something's senses 
- An animal needs to eat food for nutrients 
- Sensing food has a positive impact on finding food 
- Sensing is performed by specialized body parts 
- Avoiding predators has a positive impact on an organism 's survival 
- Avoiding something requires sensing that something 
- Radial symmetry means an animal has similar body parts dispersed in all directions around a central axis