Question

What is the average number of leukocytes per cubic mm of blood?

(a) 10,000-20,000

(b) 5-5.5 million

(c) 6000-8000

(d) 300-1000

The question was posed to me in an international level competition.

Asked question is from Body Fluids topic in chapter Body Fluids and Circulation of Biology – Class 11

Answer 1

The correct choice is (c) 6000-8000

For explanation: The formed elements of blood are the erythrocytes or red blood cells, leukocytes or white blood cells and thrombocytes or platelets. the average number of leukocytes per cubic mm of blood is 6000-8000.