The cell membrane protects the inside of the cell from the outside world.
The cell wall protects the plants inside of the cell from the outside world.
The reticular layer is composed of dense irregular connective tissue whose strength and toughness results from abundant collagen fibers.
The reticular dermis of the skin has many collagen fibers to support it because it provides strength and acts as a cushion. It also has elastin fiber that makes it elasticity.
When toucans are removed from an ecosystem it leads to loss of hardwood trees, deforestation, and global warming.
Explanation:
Toucans are very attractive brightly colored large birds which are fruigivore (fruit-eaters). They are specially adapted with a large, sharp but lightweight bill which helps the toucans to reach to branches to pick fruits, berries, seeds mostly which are larger and difficult for the smaller birds to eat.
Their main habitat for the toucan is the rainforests. They are woodland birds and stay mostly on hardwood trees.
Toucans help the rainforest ecosystem to grow by dispersing the seeds of the fruits they eat all around the forest as they keep flying. This makes the species of trees from which toucans pick their fruits to increase and makes the rainforest healthy.
When toucans are removed, then dispersal of seeds becomes less and spreading of hardwood trees will be reduced slowly leading to deforestation and drying up of forest lands.
Bigger hardwood trees play a major role in reducing carbon footprint compared to the softwood smaller trees and this increase in carbon will lead to global warming.
The answer is 4. Hope this helps
