(a)[2]
State any two hormones that are released by the ovaries.
(b)[1]
State the organ that antibodies pass through in order to reach the fetus.
(c(ii))[2]
Describe the advantages of breastfeeding a baby during the first six months of life.
(c(iii))[2]
State two methods, apart from breastfeeding, by which a baby may gain immunity.
(d)[3]
Explain the importance of an antibody's shape.
(e)[1]
State the chemical elements found in all proteins and also present in carbohydrates and fats.