It was because the city states are bigger than modern states or cities but back then they had different things from this time
Earthquakes is the answer of the density-independent limiting factor
Learning is the process of acquiring through experience new information or behaviours. We also learn that certain events occur together. We learn to associate two or more stimuli.
- Classical, operant and congitive are three learning basic forms
- Classical conditioning is a type of learning in which one learns to link two or more stimuli and anticipate events