The organized, usual, or standard ways by which society meets its basic needs are referred to as a)social institutions b)social imperatives c)social aggregates d)social solidarity

A) social institutions

Explanation:

Social institutions refer to the organized movement of people towards a common cause. This creates a social norm and standard social way of that society and binds the different sections of the society together. It can also be suggested that the social institutions act towards fulfilling the need of the people and also act as a social order among the people. It presents a standard level of expectation and a standard behavior that is expected of the people living in that society.

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.