Fungi are considered as the main decomposers of litter or wastes in various ecosystems. The growth of fungi is characterized with the presence of hyphae. Bacteria also decompose materials. They are the unicellular organisms which can break down only the surfaces of organic matters.
Put simply, there main role is to turn decaying cells into nutrient components for plants and the soil. Without Bacteria and Fungi dead organisms would decompose at a much slower rate.
Damage to the frontal lobe of the braineventually causes problems with intelligence, judgment, and behaviour. Damage to the temporal lobe affectsmemory. And damage to the parietallobe affects language. Alzheimer's is themost common form of mental decline, or dementia, in older adults.
The lack of access to the healthy food has caused the growth of Sebastian to slow down. In the case healthy food is provided to him, he can grow into the size he was genetically suited to. This process is known as the canalization. Canalization term is used as the measure of the ability of any given genotype to result in the same phenotype in-spite of the environmental variability.