After Binding to an Infected Cell,the Cytotoxic T Cell

question 15

Multiple Choice

After binding to an infected cell,the cytotoxic T cell

• A)releases a protein called perforin.
• B)becomes a phagocytic cell.
• C)neutralizes the infecting bacteria or viruses.
• D)releases interleukin- 1.

---

Definitions:

Pollution Levels

The concentration of pollutants in the environment, affecting air, water, and soil quality.

Marginal External Cost

The cost of producing an additional unit of a good or service that is borne by individuals other than the producer, typically not reflected in the market price.

Park Visitation Fee

A charge imposed on visitors for access to a park, used to fund conservation efforts, maintenance, and improve the visitor experience.

National Parks

Protected areas of natural significance designated by national governments for conservation purposes, and for the enjoyment and recreation of the public.