Horseshoe Crabs Saved My Life

Horseshoe crabs, ancient arthropods, have unique blue blood due to hemocyanin. Their blood contains coagulogen, which forms a barrier against bacteria, making it invaluable for medical testing. The LAL test, derived from their blood, ensures injectable drugs are bacteria-free. Conservation efforts are underway to protect these creatures while exploring synthetic alternatives.

What family do horseshoe crabs belong to?

• Mollusks

• Insects

• Limulidae

• Crustaceans

How is the blood of horseshoe crabs different from human blood?

• It is red and contains hemoglobin.

• It is blue and contains hemocyanin.

• It is green and contains chlorophyll.

• It is yellow and contains bilirubin.

What is the role of coagulogen in horseshoe crab blood?

• It transports oxygen.

• It digests food.

• It provides energy.

• It forms a barrier against pathogens.

Why is horseshoe crab blood considered 'liquid gold'?

• It is used in jewelry making.

• It is highly effective in detecting bacterial contamination.

• It is a rare delicacy.

• It is used as a fuel source.

What is a major ethical concern regarding the use of horseshoe crab blood?

• The crabs are used in cosmetics.

• The bloodletting process may weaken the crabs.

• The crabs are used for food.

• The crabs are kept in captivity permanently.