biome plant adaptations

over desert and tropical rain forest

Desert adaptations

in addition, cacti have spines instead of leaves. These minimise the surface area and so reduce water loss by transpiration. The spines also protect the cacti from animals that might eat them. Watch this clip to see how the saguaro cactus stores water in its stem.

Tropical Rainforest Adaptations

Lianas are climbing woody vines that drape rainforest trees. They have adapted to life in the rainforest by having their roots in the ground and climbing high into the tree canopy to reach available sunlight. Many lianas start life in the rainforest canopy and send roots down to the ground.