Waec Biology 2002 Past Questions and Answers

Question 61:

• WAEC 2002

(a) List the main constituents of mammalian blood.
(b) State two functions of each constituent.
(c) Tabulate six differences between arteries and veins.
(d) Name the main artery which transports blood to the:
(i) Lung
(ii) Kidney.

Question 62:

• WAEC 2002

(a) What is sexual reproduction?
(b) State five functions of the placenta and four functions of the umbilical cord of a mammal.
(c) List four types of placentation in flowering plants.
(d) State four conditions necessary for seed germination.

Question 63:

• WAEC 2002

(a)(i) Define ecological succession.
(ii) List four characteristics of ecological succession of plants.
(b) Explain four factors which affect population size
(c) State the adaptation of tapeworm (Taenia Solium) to its habitat in the gut of human.