Which of the following organisms has white blood?

Correct answer: (b) Cockroach

Explanation

The cockroach has white (colourless) blood because it lacks haemoglobin and red blood cells.

Its body fluid is called haemolymph, which carries nutrients and hormones but no oxygen-binding pigment; it belongs to phylum Arthropoda.

A lizard has red blood due to haemoglobin, so it is not the answer.