Different species in a habitat may depend on each other for food - AQA - GCSE Biology - Question 3 - 2023 - Paper 2
Question 3
Different species in a habitat may depend on each other for food. Figure 3 shows a food chain.
Figure 3
The grass needs energy to grow.
What is the source of energ... show full transcript
Worked Solution & Example Answer:Different species in a habitat may depend on each other for food - AQA - GCSE Biology - Question 3 - 2023 - Paper 2
Step 1
03.1 The grass needs energy to grow.
What is the source of energy for the grass?
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Answer
The source of energy for the grass is sunlight.
Step 2
03.2 Write the name of one organism from Figure 3 in each box in Table 2.
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Answer
Producer: grass
Primary consumer: snowshoe hare
Secondary consumer: lynx
Step 3
03.3 Explain how the different fur colour increases the chance of survival of the snowshoe hare.
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Answer
In summer, the snowshoe hare has a brown fur color that helps it blend into the environment, making it less visible to predators such as lynx. In winter, its white fur allows it to camouflage in the snow, providing similar protection from predators.
Step 4
03.4 State two reasons why the number of snowshoe hares increases.
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Answer
Fewer lynx (to eat them).
More food (grass) available.
Step 5
03.5 What effect does an increase in the number of snowshoe hares have on the number of lynx?
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Answer
The number of lynx increases.
Step 6
03.6 Suggest one reason why the number of lynx decreased from 1915 to 1919.
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Answer
Less food or fewer snowshoe hares (to eat) or fewer prey.
Step 7
03.7 Give two ways the biomass is lost.
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