Consider Darwin's first writings on the theory of natural selection. An important point of Darwin's Essay on the Principle of Po
pulation, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, This observation can be attributed to
Malthus stated that man is also capable of overproducing if left unchecked. He concluded that unless family size was regulated, man's misery of famine would become globally epidemic and eventually consume him. Malthus' view that poverty and famine were natural outcomes of population growth and food supply was not popular among social reformers who believed that with proper social structures, all ills of man could be eradicated.
Keratin is the tough and fibrous intercellular protein. It is present in the skin cells and makes them resistant against microbes and chemicals. Most of the epidermal cells are keratinocytes that produce keratin protein. And the presence of keratin proteins makes the skin tough and protects it from chemicals of microbial origins.
