Chapter 6 – Living things and their habitats
Consider the following statements and click to reveal the answer.
1. Which terms could be used to describe the points in the following food chains?
- Sun → grass → sheep → human
- Sun → courgette → human
Answer:
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Sun
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grass primary producer
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sheep primary consumer
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human secondary consume
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|
Sun
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courgette primary producer
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human primary consumer
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|
2. How many individual food chains make up the food web illustrated in Figure 6.2?
Answer:
There are eight food chains in the food web.
3. What impact would a rapid decline in the population of blue tits have on the food pyramid shown in Figure 6.3?
Answer:
Buzzard population would probably drop.
- Caterpillar population would probably increase.
- Availability of leaves would probably decrease, if the caterpillar population increased.
- Other animals that eat caterpillars, forming part of other food pyramids, might increase in number because there would be less competition for the caterpillars from blue tits.
4. Using the knowledge that you gained from reading the chapter, and the freshwater food chains below, create a food web for freshwater animals.
- phytoplankton → daphnia → phantom midge → roach → pike
- phytoplankton → cyclops → stickleback → pike
- phytoplankton → daphnia → stickleback → perch → pike
- phytoplankton → cyclops → perch → pike
- phytoplankton → daphnia → pike
Answer:
Phytoplankton get their food energy from the Sun.
5. Using the knowledge that you gained from reading the chapter, and the food chains below, create a food web for garden animals.
- dead leaves, fungi and bacteria → mite → ant → centipede → hedgehog
- dead leaves, fungi and bacteria → springtail → centipede → hedgehog
- dead leaves, fungi and bacteria → vegetation → earthworm → hedgehog
- dead leaves, fungi and bacteria → vegetation → slug → centipede → hedgehog
- vegetation → slug → hedgehog
- dead leaves, fungi and bacteria → earthworm
- dead leaves, fungi and bacteria → mite → snail → violet ground beetle → hedgehog
- vegetation → snail → violet ground beetle → hedgehog
Answer:
6. Use labels to identify each point in the food chains in Question 5 – for example, primary producer, primary consumer, secondary consumer, tertiary consumer, or predator, prey, or herbivore, carnivore, omnivore.
Answer:
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Primary
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Primary
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Primary/secondary
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Tertiary
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Quaternary
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Producer
Composer
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Consumer
Prey herbivore
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Consumer
Predator & Prey
Carnivore
|
Consumer
Predator & Prey
Carnivore
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Consumer
Predator
Carnivore
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