Natural selection

12 questions

1. Camels store fat in their hump. Why is this a helpful adaptation for living in a hot environment?
2. Leaves are adapted to contain chlorophyll and be broad but thin in shape. Match each adaptation with its function.
3. A single female house fly can lay up to 500 eggs. The eggs hatch into maggots which feed on food waste. Why don’t all the maggots survive to become adult flies?
4. These two male deer (stags) are competing. Which resources could they be competing for?
5. Arctic foxes live in the Arctic and are adapted to survive in low temperatures. Which of the following are adaptations of the Arctic fox?
6. Some plants have variegated leaves, which contain less chlorophyll than normal leaves. Order the sentences to explain why these leaves could be a disadvantage.
7. Individuals in a population of plants or animals are not all the same. For example, humans have different eye colours. What term do scientists use to describe these differences?
8. Match the words with the correct definitions.
9. During the industrial revolution, dark variants of peppered moths became more and more common. Which is the best explanation for this?
10. Natural selection over many generations causes helpful adaptations to become more ___ in the population.
11. For natural selection to happen, characteristics must be ...
12. Humans catch fish called cod using nets. The nets only catch the bigger cod. Smaller cod fit through the holes. Order the steps to explain why small cod are becoming more common in each generation.

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