Now your brain will never reject that the meaning of the prefix re- is âbackâ or âagain.â Reflect upon re-, and your vocabulary prowess will never regress! 1  reject: throw âbackâ. 2  recede: move âbackâ.  reduce: lead âbackâ.
1 Rattlesnakes rattle by shaking the rings at the end of their tails. 2  Water moccasins' mouths have a white, cottony lining.  Coral snakes have red, yellow and black rings along the length of their bodies.
1 Rattlesnakes use the loreal pit, a heat-sensing organ between the nostril and eye to locte prey and potential predators. 2  These snakes have glands that make venom, much like human saliva glands make saliva.  The rattle is made of keratin, the same material found in human hair and fingernails.