If you teach your dog a trick and then reward him with a treat when he performs the trick, this is an example of learned behavior. Over time, the dog learned that he would be rewarded for following your command.
mechanical
The primary function of the digestive system is to supply the cells of the body with nutrition. It does this by ingestion, digestion, and absorption. The waste materials that are not used are then eliminated.
memes
Muscle.
They are pheromones.
Group Behavior
cells, tissue, organs, organ systems, and organism.
Altruism is a form of self-sacrificing behavior.