(a) How are cactus adapted to survive in a desert? [3 marks]

(b) Explain why speed is important for survival in the grasslands for animals that live there. [2 marks]

(a) Cactus has specialised adaptive features to survive in a desert. They are: (1 x 3 = 3 marks)

• Green stems to undergo photosynthesis.
• Deep roots to absorb water found deep in the ground.
• Leaves are modified into spines and stems have a waxy coat to reduce transpiration.

(b) Speed is important for survival in the grasslands for animals to escape their predators. For example: (2 marks)

• A deer is an animal that lives in forests and grasslands.
• A deer needs to stay alert from predators.
• The speed of the deer helps them to run away from the predators.