Which of the Following Is Not a Step in T-Cell

question 63

Multiple Choice

Which of the following is not a step in T-cell activation?

• A)Antigen presentation
• B)Production of helper T cells
• C)Secretion of lymphokines that activate B cells
• D)Production of antibody-secreting plasma cells

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Definitions:

Difference Threshold

The minimum difference in physical stimulation required to detect a difference between sensory inputs.

Absolute Threshold

The minimum level of stimulus intensity required for a stimulus to be detected at least 50% of the time by an observer.

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time, also known as the "just noticeable difference."

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into nerve signals sent to the brain.