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Humoral Immune Response

Practice Humoral Immune Response
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Blue Blood
Teacher Contributed

Blue Blood


Horseshoe Crabs

Student Exploration

This Won't Hurt At All


Extension Investigation

Use the resources below to answer the following questions:

  1. What makes the horseshoe crabs blood blue? Does this represent the oxygenated or deoxygenated state of the blood? Explain your answer as much as possible.
  5. What use have humans found for horseshoe crabs other than their blood?
  6. What is hemocyanin?
  7. How many eyes does a horseshoe crab have?
  8. When do horseshoe crabs reach sexual maturity?
  9. How may the work of Professor Carmela Cuomo help conservation efforts? Explain your answer as fully as possible.
  10. When do horseshoe crabs first appear in the fossil record?
  11. Do you think the horseshoe crab is a living fossil? Explain your answer as fully as possible.

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