What adaptations do plants need to survive on land?
Plants need several adaptations to survive on land. They would need a method of absorbing oxygen and way to absorb food from their environments.
What adaptations does a plant need to survive harsh environments such as a drought low nutrients in the soil and direct sunlight?
The cuticle is a useful adaptation in plants but not in algae because: in order for plants to live on land, they need a cuticle to prevent water loss during dry climates. Algae live in the water, therefore they don't need a cuticle to survive. They use their adaptations to absorb the water and nutrients around their watery environments. Source: My straight "A" brain