(a)[2]
State two features that are found in all birds.
(b)[4]
Use the key to identify the five birds shown in Fig. 1.1. Fill in Table 1.1 by writing A, B, C, D and E in the boxes beside each bird’s name.
(c(i))[2]
Suggest how these features support survival in its habitat.
(c(ii))[1]
State the name of the process responsible for birds with these features.