The Human Body Uses Three Lines of Defense to Protect

question 12

Multiple Choice

The human body uses three lines of defense to protect against pathogens. Match each of the following categories of defense to the type of cell or mechanism involved in the defense. Answers may be used more than once.
-cytotoxic T cells

• A)physical or chemical barrier
• B)specific defense mechanism
• C)nonspecific defense mechanism

---

Definitions:

Farm Price Supports

Government subsidies designed to maintain the income of farmers by stabilizing the prices of agricultural products.

Corporate Farms

Large-scale agricultural operations owned or operated by companies rather than individuals or families, often involved in intensive farming practices.

Agriculture

The practice of cultivating the soil, growing crops, and raising livestock for human consumption and use.

Productive Sectors

Parts of the economy that are directly involved in producing goods and services, contributing to the economic output.