Which of the following is termed as the 'graveyard' of R.B.C.?
(a) Liver
(b) Spleen
(c) Kidney
(d) Bone marrow

Q. Which ones of the following statements are wrong?
(a) Leucocytes disintegrate in spleen and liver
(b) RBC, WBC and blood platelets are produced by bone marrow
(c) Neutrophils bring about destruction and detoxification of toxins of protein origin
(d) Important function of lymphocytes is to produce antibodies.

Q. A chemical which damages WBC, bone marrow, spleen, lymph nodes and lungs is

Q. Which one of the following statements are wrong?
(a) Leucocytes disintegrate in spleen and liver.
(b) RBC, WBC and blood platelets are produced by the bone marrow.
(c) Neutrophils bring about destruction and detoxification of toxins of protein origin.
(d) Important function of lymphocytes is to produce antibodies.

Q. Which organ is called 'Graveyard of R.B.Cs'?

Q. Find the odd one out in each of the following groups giving reasons.
(a) blood, bone, kidney, cartilage
(b) liver, heart, stomach, intestine
(c) skull, fingers, ureter, backbone
(d) spine, knee, shoulder, fingers