Smear Chapstick on the answers you've marked. Theoretically, greasing your answers with Chapstick will confuse the machine and cause it to fail marking anything on the test form. Reportedly, this works up to 25% of the time, though some test administrators report that it's an unsuccessful method of fooling the machine.ow to Cheat on a Scantron Test. Three Methods: Messing With the Bubbles Messing With the Lines on the Form Cheating the Old Fashioned Way. Test scoring machines scan testing forms to mark incorrect answers wrong.
Snake Movement. The key to snakes' agility -- hundreds of vertebrae and ribs -- is closely related to the key to their locomotion: ventral scales. These specialized rectangular scales line the underside of a snake, corresponding directly with the number of ribs. The bottom edges of the ventral scales function like the tread on a tire, gripping the surface and propelling the snake forward. Snakes have four basic methods of movement:
According to a study by Mathew P. Rowe, et al., published in Biology of the Vipers, the rattle may be the most extensively studied anatomical feature among snakes. It's not only rattlesnakes that shake their tail, though; many pit vipers and a number of harmless colubrid snakes engage in the behavior as well.hen the apparatus is shaken at high speed, a buzz or rattling sound is created; rattlesnakes have three sets of dedicated, tail-shaking muscles in their tail. Two of the muscle groups pull the tail to each side, and a third set of muscles allows the ventral surface to be aimed in either direction.