Q. Consider the following differences between RBCs and WBCs in human body:
  1. RBCs are smaller in size but larger in number compared to WBCs
  2. While RBCs do not have nucleus, WBCs have nucleus
Which of the above statements is/are correct?

Answer: Both 1 and 2
Notes: Both the statements are correct.
RBCs have haemoglobin which carries oxygen to lungs whereas WBCs helps in blood clotting in the body.