1.   Different phospholipids and different molecular forms of phosphatidylcholine were also added to three human biles.

2.   They must adapt to various nutritional conditions, particularly to the value, nature, and molecular form of the nitrogen in the diet to survive.

3.   These differed not only in duration but also in the molecular form in which the nitrogen was supplied.

4.   In its normal molecular form it acts to prevent the development of breast tumors.

5.   Although they look identical, the natural version consists of a mix of several different molecular forms.

6.   The scientists used a molecular form of fishing to snare their proteins.