(a(i))[1]
Reptiles are vertebrates. State one feature that all vertebrates share.
(a(ii))[2]
State two features that could be used to identify the animals in Fig. 1.1 as reptiles.
(a(iii))[1]
Snakes are also reptiles. State one visible way in which the snakes in Fig. 1.2 differ from the reptiles shown in Fig. 1.1.
(b(i))[1]
State the vertebrate group that the newt belongs to. Choose from this list and circle your response. amphibian bird fish mammal
(b(ii))[2]
State two features of this group that differentiate it from other vertebrate groups.
(c)[2]
In some reptile species, the female retains the fertilised eggs inside her body until they are ready to hatch. Suggest two advantages of this adaptive feature.