Adaptive immunity refers to antigen-specific immune response. The adaptive immune response is more complex than the innate. The antigen first must be processed and recognized. Once an antigen has been recognized, the adaptive immune system creates an army of immune cells specifically designed to attack that antigen.Adaptive immunity also includes a memory that makes future responses against a specific antigen more efficient.he antigen first must be processed and recognized. Once an antigen has been recognized, the adaptive immune system creates an army of immune cells specifically designed to attack that antigen. Adaptive immunity also includes a memory that makes future responses against a specific antigen more efficient.
Fiscal policy is the use of government spending and taxation to influence the economy. When the government decides on the goods and services it purchases, the transfer payments it distributes, or the taxes it collects, it is engaging in fiscal policy.
Types of Fiscal Policy. The government has control over both taxes and government spending. When the government uses fiscal policy to increase the amount of money available to the populace, this is called expansionary fiscal policy. Examples of this include lowering taxes and raising government spending. When the government uses fiscal policy to decrease the amount of money available to the populace, this is called contractionary fiscal policy. Examples of this include increasing taxes and lowering government spending.