11. Some biotech crops can help increase yields and others are resistant to common field pests. 12. Its domesday assets were : 7 common fields . 13. A family s holding consisted of a number of strips dotted about each of the common fields . 14. The southeastern mice all are subspecies of the same species, all distant relatives of common field mice. 15. Consequently, the centre was built on the site of the old tennis courts adjacent to Commons Field . 16. Chemistry, this is a very common field . 17. In 1795, an Act was passed for dividing, enclosing and draining the open common fields in Warboys. 18. Sheldon insists it is a snowy tree cricket while Howard maintains that it is a common field cricket. 19. In 1617 the common fields of the Littleton's manor of Otherton were enclosed by agreement with the occupiers. 20. However, two arbitrary fields cannot be embedded into a common field when the characteristic of the fields differ.