The appropriate response is classical conditioning. It is a learning procedure that happens when two boosts are over and over combined; a reaction that is at first inspired by the second jolt is at the end evoked by the primary jolt alone. Classical conditioning is the essential learning procedure, and its neural substrates are presently starting to be caught on.
Biological diversity is the variety of species in a given area. If a new species is added there are more species and therefore greater biological diversity and if one goes extinct there are less species and therefore less biological diversity.