Organ Systems Integration in Animals · NCERT Biology

Which organ system works closely with the immune system to transport immune cells?

  1. Digestive system
  2. Circulatory system
  3. Respiratory system
  4. Skeletal system
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Correct answer: Circulatory system

The circulatory system transports white blood cells throughout the body. This supports immune defense and response.

Difficulty: Medium Question 13 of 20

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