Multiple choice Which of the following statements is true about white blood corpuscles? They are biconcave and enucleated. They are smaller and fewer than the red blood corpuscles. They have a life span so small as 3-4 weeks. They undergo diapedesis to squeeze out of the capillaries. Reveal answer Fill a bubble to check yourself D Correct answer Explanation Diapedesis is the amoeboid movement, which is a characteristic of white blood corpuscles.