__________ Engulf and Destroy Infectious Agents

question 50

Multiple Choice

__________ engulf and destroy infectious agents.

• A) Phagocytes
• B) T cells
• C) Helper T cells
• D) B lymphocytes

---

Definitions:

Microsystem

The immediate settings with which the child interacts, such as the home, the school, and the child’s peers.

Exosystem

Community institutions and settings that indirectly influence the child, such as the school board and the parents’ workplaces (from the Greek exo, meaning “outside”).

Ethologists

Specialists who study animal behavior in natural environments, focusing on how animals interact with each other and their surroundings.

Evolution

The biological process by which species of organisms change over time through variation, genetic mutation, and natural selection.