a.    State five :
    (i) challenges that make conservation of resources difficult;    [5 marks]
    (ii) ways by which the Government of a country ensures conservation of natural resources.    [5 marks]

b.    What is an endangered species?    [3 marks]

c.    A child with blood group O was born to a mother of blood group A.
    (i) What is the blood group genotype of the child?    [1 marks]
    (ii) What are the possible blood group genotypes of the father?    [3 marks]

d.    State three reasons why genetic variation is important to plants.    [3 marks]