The Prickly Pear Cactus (Opuntia), is most widely known for its ability to withstand the harsh conditions of the desert. What adaptations does it have to help it survive?

• Needle-shaped leaves: They minimise the amount of water lost through the stomata. Also, they act as a deterrent to animals who want to eat the plant.
• Fleshy stem: This allows the plant to store water in its stem.
• Wide-spread roots: They allow the plant to absorb more water whenever rain comes.
• Thin and horizontal stem: The stem points upwards and is thin to reduce the amount of surface area that is open to intense heat.