(a(i))[1]
State the main source of energy for this food web.
(a(ii))[1]
Explain what the arrows in Fig. 8.1 stand for.
(a(iii))[1]
State how many different secondary consumers are present in this food web.
(a(iv))[1]
Name the organism that acts as both a secondary and a tertiary consumer.
(a(v))[3]
State what would happen to the number of hawks if every snake in this food web died. Explain your answer.
(b(i))[1]
Add this information onto Fig. 8.1. There is no need to draw an eagle.
(b(ii))[2]
State one factor that will raise the eagle population and one factor that will lower the eagle population.
(b(iii))[2]
Define what is meant by population.