The nervous system is the part of an animal 's body that coordinates its voluntary and involuntary actions and transmits signals to and from different parts of its body. Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago.he size of the nervous system ranges from a few hundred cells in the simplest worms, to around 100 billion cells in humans. The central nervous system functions to send signals from one cell to others, or from one part of the body to others and to receive feedback.
Use an all-purpose kitchen cleaner and a rag or paper towel to wipe the rest of the surfaces of the oven clean. In order to avoid a streaky appearance, you should clean the window with a glass cleaner or a mixture of one part each of rubbing alcohol, one part vinegar and two parts water.
Step 1. Grease the cookie sheet with baking spray and set it aside while you preheat the oven to 200 degrees. Step 2. Open the package of chicken breasts and pat the tops dry with a paper towel. Pull each chicken breast out and pat the bottom dry before placing them on a plastic cutting board.Step 3. Slice the chicken into long, thin strips -- no wider than a quarter-inch -- with the sharp knife, cutting with the grain of the meat to produce chewier jerky. Remove any fat and discard it.lace the chicken strips on the greased cookie sheet, making sure none of them touch and there is space for air to circulate between each piece. Step 5. Place the tray in the oven and bake the strips. Check them at two hours, although it may take three to six hours to complete the drying process.