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).
DEET (N,N-diethyl-3-methylbenzamide) is a reliable and highly effective insect repellent. The chemical has been in public use since 1957. The repellent is sold under numerous brand names and comes in lotion, spray and many other forms.Concentrations of DEET range from about 5% all the way up to 100%.epellents, clothing, netting and other personal protection measures can help prevent mosquito bites and the diseases they carry. Insect repellents are effective and safe when properly used.