Question

I need help with 4,5,6

Answer 1

4. A model can be used to represent a theory, but not vice-versa.

5. You can find online information on a illness through the works of one or more professors and/or colleges. Typically, those will be represented by websites displaying .org or .net at the end.

6.A model and a law are both expressed as mathematical equations.

Answer 2

that is easy you just have to write what it does