A Threshold Dose of Antigen Is Best Described as the Dose

question 45

Multiple Choice

A threshold dose of antigen is best described as the dose needed to

• A) generate an optimal immune response.
• B) activate only a few immune cells.
• C) generate only a T-cell response.
• D) induce immune complement response.
• E) induce immunological tolerance.

---

Definitions:

Air Sacs

Air sacs are part of the avian respiratory system, providing birds with the ability to engage in highly efficient gas exchange.

Warm-Blooded

Organisms, primarily mammals and birds, capable of maintaining a constant body temperature regardless of environmental conditions.

Variable Body Temperature

Condition where an organism's body temperature fluctuates based on external environmental conditions, typically seen in ectothermic animals.

Hard-Shelled Egg

An egg with a calcerous or hard outer shell, providing protection and a contained environment for the developing offspring.