1.Describe the course, effects, and complications of HIV-AIDS. 2. Explain why the immune system is considered a specific defense. 3. Explain why the immune system must distinguish between self and...

1.Describe the course, effects, and complications of HIV-AIDS.

2. Explain why the immune system is considered a specific defense.

3. Explain why the immune system must distinguish between self and non-self.

4.Describe two differences between B and T lymphocytes.

5.Where is IgG found in the body?