1.   A number of different theories concerning the necessary prerequisites for the State have been proposed by anthropologists.

2.   Different chemists prefer different pet theories, and there is no shortage of theories.

3.   Different standards of significance will naturally yield different theories - sets of laws relating significant descriptions.

4.   Generally, different theories are used to explain widely different phenomena, from the forces in the atom to gravity.

5.   In addition, presenting both theories allows one to show how two seemingly different theories are really the same under the skin.

6.   In what follows, I propose to pursue this question further by considering critically four different philosophical theories of particulars.

7.   They produced very different theories about the origins, character and future path of industrial society.

8.   With these different theories come different conclusions about the history of the skeleton, fins, nasal sacs and so on.

9.   There are a number of different theories about the cause of the disease.

10.   Although there are several different theories about play, there is certainly a consensus about its importance in human development.