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).
While partly true, insect control is only one use for pesticides. Here's the definition of a pesticide from the Canadian Environmental Protection Act: A pesticide is any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest.. All pesticides must be tested, registered and carry a label approved by the CEPA. Despite the agricultural community's regular use of pesticides, homeowners are the number one users.