Because the leaves and branches of the top layer block sunlight from reaching the bottom layer.
If the bottom layer leaves are small, the would receive lesser sunlight. The top layer leaves are smaller than the bottom layer leaves in size as they can receive more sunlight, thus the bottom layer leaves are larger in size to have a bigger surface area to trap more sunlight. Hope this can help you. '~'
The Canopy layer
Temperate diciduous
hecdijx
The amazon rain forest is made up of four different layers. The second story is called the understory. The plants in the understory have large leaves for collecting sunlight.
Bottom Layer
The Emergent layer due to it being above the canopy which blocks most the sunlight for layers below. Ez Clap
The most.
All places on earth get sunlight. :-) Seriously, I live in a temperate rainforest here in the Pacific Northwest, and it gets plenty of sunlight. It is a mixture of sunlight AND rain that makes a rainforest grow.
It grows in layers because of the amount of sunlight reaching each part of the forest. Since the emergents are the highest they receive the most amount of sunlight and hence the top layer. As the layers decrease so does the amount of sunlight and hence different heights of the rainforest.
jaguars, reptiles,bottom dwellers. ect..
Yes they live on the VERY bottom of the forest floor