Final answer:
In a tropical rainforest, the two layers of plants from higher to lower are the canopy layer and the understory layer.
Step-by-step explanation:
In a tropical rainforest, the two layers of plants from higher to lower are the canopy layer and the understory layer.
The canopy layer is the uppermost layer of branches and leaves, forming a closed dense layer that blocks most of the sunlight from reaching the lower layers.
The understory layer is the layer of short shrubby foliage situated below the canopy layer and above the forest floor.