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.
Vipers (Viperidae) are a group of snakes known for their long fangs and venomous bite. Vipers include true vipers, bush vipers, rattlesnakes, pit vipers, adders and night adders. The fangs of vipers are long and hollow and enable the snake to inject venom into animals that it bites. Venom is produced by and stored in glands located at the back of the snake's upper jaw. When the snake's mouth is closed, the fangs recede into a thin membrane and fold against the roof of the snake's mouth.