The blood of which of the following is not red?

  1. Cockroach
  2. Crab
  3. Both
  4. None of these


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  1. Cockroach: 

    • The cockroach has white blood.
    • Cockroaches lack haemoglobin in their blood hence their blood colour is white.
    • Cockroach comes under the Phylum- Arthropoda.

    Important Points

    • House bug and Mosquito contains hemolymph.
    • Insect blood is called hemolymph, it contains various nutrients, hormones, and other things.
    • Hemolymph does not have any red blood cells or haemoglobin.

    Mistake Points

    • It is a misconception that all crabs have blue blood.
    • The majority of crabs have red blood.
    • It is only a horseshoe crab that has blue blood.
    • Hence, crab is not the correct answer to this question.
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