The camel is a mammal that is adapted to living in sandy deserts. Two physical adaptations of the camel are:
- Large flat feet
- Two rows of long eyelashes.
a) Explain how each of these adaptations help the camel to survive.
- Large flat feet: _____
- Two rows of long eyelashes: _____
b) Which one of the following is a living factor that could limit the size of a population of camels in the desert?
Light, Competition, Water and Temperature
Important Questions on Ecology
The Camelops is a species of camel that lived many years ago. Scientists think that it was hunted to extinction.
a) Which two of the following are also possible causes of extinction of species?
i) A change in climate ii) Pollution iii) Improved medicines iv) Breeding programmes
b) An increasing human population has caused many species to become close to extinction. Explain one way in which an increasing human population could cause extinction.
Hena investigated the length of nettle leaves found in the shade and in the sunshine. Her results are shown in the table.
| Length of nettle leaf (cm) | Length of nettle leaf (cm) | Length of nettle leaf (cm) | Length of nettle leaf (cm) | Length of nettle leaf (cm) | |
| Nettles in the sunshine | 4.3 | 3.9 | 4.4 | 4.7 | 5.1 |
| Nettles in the shade | 7.2 | 8.4 | 6.6 | 7.3 | 6.2 |
a) Write a conclusion from Hena's results.
b) Suggest an explanation for Hena's results.
