Make sure you know the information which you were given. Brain stem: The brainstem is located at the juncture of the cerebrum and the spinal column. It consists of the. midbrain, medulla oblongata, and the pons. Limbic cortex, Components of limbic system - â see lecture materials. (LK) Cogs 107A Study materials for exam 1 10/4/2006.
Photo by: bluehand. DDT is a synthetic chemical compound once used widely in the United States and throughout the world as a pesticide (a chemical substance used to kill weeds, insects, rodents, or other pests).
DDT was the first insecticide that proved effective in controlling  the boll weevil. However it was banned and other insecticide were  used, but they too caused problems andâ¦ were expensive. Nowadays,  parasitic wasps and specialized bacteria and viruses are used for  control with considerable success.