What is meant by 'species richness'?

From the data in Figure 4, a student made the following conclusions.

1. The natural habitat is most favourable for bees. 2. The town is the least favourable for bees.

Do the data in Figure 4 support these conclusions? Explain your answer.

1. The natural habitat is most favourable for bees.

2. The town is the least favourable for bees.

The scientists collected bees using a method that was ethical and allowed them to identify accurately the species to which each belonged.

In each case, suggest one consideration the scientists had taken into account to make sure their method

1. was ethical.

2. allowed them to identify accurately the species to which each belonged.

Suggest and explain two ways in which the scientists could have improved the method used for data collection in this investigation.

1.

2.

Three of the bee species collected in the farmland areas were Peponapis pruinosa, Andrena chlorogaster and Andrena piperi.

What do these names suggest about the evolutionary relationships between these bee species? Explain your answer.