The answer is cell membrane.
Answer:
Economic characteristics of the Colonial Period
The New England colonies developed an economy based on shipbuilding, fishing, lumbering, small-scale subsistence farming, and eventually, manufacturing. The colonies prospered, reflecting the Puritans' strong belief in the values of hard work and thrift.
Disposophobia or Compulsive Hoarding. Those who suffer from this condition have a problem discarding any item that they might have in the house or office even when they know that it is of no use. They usually have the opinion that it will be used in the future thus it is best if it sticks around. Peter fits the diagnosis as he is compelled by the need to save things regardless of their value.