Available choices: 1. foraging areas 2. messengers 3. continents 4. Collagen 5. hormones 6. senses. 7. arteries 8. sound
Q: Fact 1: Smell is used for finding food by some animals. Fact 2: Another of our five major senses is the sense of smell. Given the two facts above, animals use five major what to locate food?
A:
6.