Understanding the Immune System

What is one reason why two people might recover from a cold at different rates?

• One person exercises more.

• They have different immune system genes.

• One person eats more vegetables.

• They have different blood types.

What role do TE-C cells play in the immune system?

• They produce antibodies.

• They identify cells producing abnormal substances.

• They transport nutrients.

• They regulate body temperature.

Which human trait is most variable among individuals?

• Height

• Hair color

• Immune system genes

• Eye color

Why should individuals not blame themselves for slower recovery from illnesses?

• Because they are not getting enough sleep.

• Because they might not be eating enough vitamins.

• Because genetic differences affect immune responses.

• Because they are not exercising enough.

What is a common misconception about supporting the immune system?

• That it is influenced by stress levels.

• That it is entirely based on genetic inheritance.

• That it can be improved by eating more vegetables.

• That it is solely determined by lifestyle choices.