Answer: Yes that is very much true it is just like a food chain in a diferent habitat. You would have Peasants at the very bottom above them were Knights and above them were, the nobles and lords or the wealthier people and at the very top of the system is the king.
I believe the answer is: <span>exclusion and non-rival shared consumption
In this context, exclusion refers to the act of limiting the school membership to a certain social group (would most likely the children that come from non-wealthy family). Non-rival shared consumption in this context refers to fact that if a certain members of society use the school service, it does not necessary make any difference if other members use it too since it's not something that could out of order.</span>
Probably cow prints in the mud and poop.
Evidence. Let's say there was a murder and they find a person's finger prints on the weapon that was used to kill the victim, then we can safely assume they were the killer. You also need to take account for motive, where they were during the time of murder, etc. <span />
