Write a dichotomous key to enable someone to identify each of the four fish.

List five ways in which the second drawing is better than the first drawing.

List two features of all arthropods, that are not found in other groups in the animal kingdom.

Complete the table to show the characteristic features of the four groups of arthropods.

List three features shared by ferns and flowering plants, which are not shared by organisms in the animal or fungus kingdom.

Describe two ways in which ferns differ from flowering plants.

Summarise the characteristic features of monocotyledons and dicotyledons.