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Question 105

The heart and blood vessels work together to move blood through the body. At what organizational level is the whole circulatory system?

  1. Cell
  2. Tissue
  3. The organ-system levelCorrect answer
  4. Organelle

Explanation

The circulatory system contains cooperating organs, including the heart and blood vessels, so it is an organ system. Blood is a tissue within this system and therefore does not represent the level of the whole structure.

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Question 105: The heart and blood vessels work together to move blood… · Cells and Microscopy · Questena