Their subsistence was based on hunting, fishing, and the cultivation of corn they moved seasonally between fixed sites to exploit these food resources. The Nipmuc were divided into territorial bands, or groups of related families living in one or more villages; each village was ruled by a sachem, or chief.
When people get older their immune system becomes weak including the function of the T cells which are cells responsible for fighting infections.
This means it becomes hard to recover from a flue when someone get sick and they are always prone to sickness since their immune system no longer has the power to fight infections.
The theory that most strongly emphasizes nurture as important in development is "<span>behaviorism".
Behaviorism alludes to a psychological approach which stresses logical and target strategies for examination. The approach is just concerned about recognizable boost reaction practices, and expresses all practices are found out through connection with the environment. </span>