B2 H - SAMPLE SET 1 Q4
4) Moose are animals that eat grass.
Figure 2 shows a moose.
Figure 2 shows a moose.
Figure 3 shows a food chain.
4.1) Name the secondary consumer shown in Figure 3. [1 mark]
Figure 4 shows how the moose population and wolf population have changed in one area.
This is a predator-prey cycle.
Figure 4 shows how the moose population and wolf population have changed in one area.
This is a predator-prey cycle.
4.2) In 2004 the line on Figure 4 for wolves is above the line for moose.
How does Figure 4 show that there are more moose than wolves in 2004? [1 mark]
4.3) Suggest why the moose population decreased between 2002 and 2004. Use information from Figure 4. [1 mark]
4.4) The number of wolves is one biotic factor that could affect the size of the moose population.
Give two other biotic factors that could affect the size of the moose population. [2 marks]
1. ____________________________
2. ____________________________
4.5) Moose have distinct characteristics such as antlers.
Describe how moose may have evolved to have large antlers. [5 marks]
(Total for Question 4 = 10 marks)
How does Figure 4 show that there are more moose than wolves in 2004? [1 mark]
4.3) Suggest why the moose population decreased between 2002 and 2004. Use information from Figure 4. [1 mark]
4.4) The number of wolves is one biotic factor that could affect the size of the moose population.
Give two other biotic factors that could affect the size of the moose population. [2 marks]
1. ____________________________
2. ____________________________
4.5) Moose have distinct characteristics such as antlers.
Describe how moose may have evolved to have large antlers. [5 marks]
(Total for Question 4 = 10 marks)