Differentiate between the following pair of terms:
(d) RBC and WBC.
RBC (Red blood cells)
WBC (white blood cells)
They do not have a nucleus at maturity.
They have a large characteristic nucleus.
They are red in colour due to the presence of haemoglobin.
They are colourless as they do not contain any pigment.
It helps in the transport of oxygen from the lungs to other parts of the body.
It protects us from disease-causing organisms i.e provide immunity to the body.
Differentiate between each of the following pairs with reference to phrases in brackets: (a) Antibodies and antibiotics (Source) (b) RBC and WBC (structure) (c) Serum and vaccine (Composition)