Q: Fact 1: An animal requires nutrients to grow and heal. Fact 2: Food is the ideal source of nutrients. Given the two facts above, what does an animal require food for?

Options are:
1). hydration;
2). to grow and heal;
3). for cold;
4). aerobic capacity;
5). organic molecules;
6). food and shelter;
7). to chill;
8). for electricity;
The answer is:
2).