(a)[1]
State the sort of variation displayed by the colour of these tree frogs.
(b(i))[1]
Tree frogs eat insects, and the insects are herbivores. State the meaning of the term herbivore.
(b(ii))[1]
State the trophic level occupied by the tree frogs.
(c)[5]
Use your knowledge of the process of natural selection to explain how grey and green tree frogs are distributed across different areas.