Using Figure 2, give three conclusions you can make about the distribution of these lemur species.

1

2

3

Using all the information, suggest how speciation happened to produce two species of lemur.

The scientists used the mark-release-recapture method to determine the number of lemurs in one area of forest. They captured, marked and released a first sample of 30 lemurs. A week later, they captured a second sample of 25 lemurs from the same area of forest. The scientists calculated that there were 250 lemurs in that area of forest.

Suggest one precaution needed when marking the lemurs to make sure the estimate of the number of lemurs is valid.

Using the information provided, calculate how many lemurs in the second sample were marked.