The reaction of an acid with a base, for example, results in the creation of a salt and water. Some, but not all, reactions can be reversed. See nuclear reaction. An action that results directly from or counteracts another action, especially the change in a body's motion as a result of a force applied to it.
Snakes are cold-blooded creatures, just like amphibians. When a certain animal is cold-blooded, it basically means that they are able to adapt their own internal temperature to that of their environment. When a snake is in a cool environment, their body temperature tends to drop rather quickly.
When the air is hot the lizard's body becomes hot and when the air is cooled down the lizard's body becomes cool. This made scientists think that reptiles and other cold-blooded animals always have the same body temperature as their environment. A slow worm is really a lizard which never grows legs. It is often found basking in the sun in sandy places. A slow worm is really a lizard which never grows legs.