Complete the sentences below. Write NO MORE THAN TWO AND/OR A NUMBER.

• Von Frisch focussed on a number of [1] clues to deduce how bees communicated.

• The bee will move forward for [2] for every 1000 metres away the food source is.

• To locate the direction of the nectar, the forager will base its movements on the position of [3].

• For food sources over 150 metres away, the forager will indicate distance with a [4] dance.

• It has been argued that [5] as well as movement may help to locate food sources.