Resistance may be defined as 'a heritable change in the sensitivity of a pest population that is reflected in the repeated failure of a product to achieve the expected level of control when used according to the label recommendation for...

A good description of the growth and changes in plants from the seed through the adult plant. College level discussion that includes the chemicals involved in the regulation of plant growth.

Site keeps up-to-date news on the Bhopal disaster in 1984. There is a video and a survivor's account of that night. Photos include the factory as it looked in 2003.