Question 3

Question 1

Based on the data in the graph, identify the habitat type with the greatest number of lizards

Answer 1

Clearings, Gardens

Question 2

Based on the data in the graph describe the relationship between the lizard numbers observed on islands with and without mongoose populations

Answer 2

Lizard populations are smaller where mongooses are most present than on mongoose free islands

Question 3

Based on the theory of island biography, describe the characteristics of an island with the greatest species diversity

Answer 3

A large island that is located by the mainland

Question 4

Describe one environmental problem cause by invasive animal species

Answer 4

Invasive species outcompete native species causing trophic cascades

Question 5

Invasive species are often pests. Make a claim that proposes one way to control pest species

Answer 5

Introduce biological controls, like natural predators of the species, to reduce the number of pests

Question 6

Justify the solution proposed (natural predators) by providing an additional benefit of the solution

Answer 6

Harmful synthetic chemicals aren’t introduced into the environment

Question 7

Identify a provisioning ecosystem service provided by primary forests

Answer 7

Medicine

Question 8

Based on the data in the graph explain how replacing primary forests with sugarcane fields may have affected the number of lizards counted on the mongoose free pacific islands

Answer 8

The cleared land has fewer predators, which led to increased numbers of lizards counted in the sugar cane fields compared to the forests

Question 9

The long term use of monocultures in commercial sugarcane farming is one cause of the ecological damage. Describe one problem with monocultures

Answer 9

Decreased species diversity

Question 10

Describe an advantage of crop rotation using legumes on soil fertility

Answer 10

Improved nitrogen fixation in the soil