Fig. 2.1 depicts an Arctic wolf, Canis lupus. These wolves are among the few mammals that are adapted to the intense cold of the tundra in the Canadian Arctic and Alaska.
(a(i))[2]
State two visible features in Fig. 2.1 that show Arctic wolves are mammals.
(a(ii))[3]
Explain what the term adaptive feature means.
(b)[3]
State three conditions that restrict plant growth rates.
(c)[6]
Explain why Arctic wolf numbers are so low in this ecosystem.
Worked solution & mark scheme
This 14-mark question has a full step-by-step worked solution and mark scheme. One marking point: “ears on the outside / pinnae” …