Moderate

Cells which kills cells that display foreign motifs on their surface are:

Correct answer: B. Cytotoxic T cells

  • A. Platelets
  • B. Cytotoxic T cells
  • C. Antigens
  • D. Red blood cell

Explanation

T cells are direct fighters of foreign invaders. Also called cytotoxic T cell and cytotoxic T lymphocyte.

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About Circulation

The circulatory system covers the chambers, valves and conducting pathway of the human heart, along with the cardiac cycle and control of heartbeat. It compares arteries, veins and capillaries by structure and function, and explains how the lymphatic system returns tissue fluid, transports absorbed fats and supports immunity.

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