How are we here? What can account for the broad diversity of life we see around us every day?
Every plant and animal has a tendency to produce in geometrical progression Malathian concept. If all the offsprings of an organism survive, then in a few generations the whole earth will be occupied by the individuals of a single species.
Some example of over production can be cited as: A bacterium can give rise to millions of new bacteria in a single day it produced by binary fission.
A fern plant produces millions of spores and it all of them germinate and produce new plants, they will cover the earth in few years. An evening primerose plan produces seeds per year.
Social Darwinism essay shows that the evolutionary theory of Darwin is a holistic doctrine of the historical development of the organic world. It covers a wide range of problems most important of that are evidence of evolution, an identification the driving forces of evolution, a determination of the ways and regularities of an evolutionary process. Darwin read Thomas Malthus’s Essay on Populations. Malthus () was an economist who wrote that people always tend to over-reproduce, but that the resources they depend upon don’t reproduce fast enough to continue to provide for the extended population. Free Essay: Before the theory of evolution was a widespread theory in the world of science, Greek and Roman philosophers had their own theories about how.
In this rate the number will be enormous in few generations. Elephant is the slowest breeder among animals.
In its years life span and 60 years of reproductive capacity, it produces maximum six offsprings. At this rate couple of elephants will produce 15 million elephants in years. With such extraordinary productivity of living things an effective check upon every species of plant and animal is inevitable.
This check was recongnised by Darwin as struggle for existence. The immense power of reproduction ensures a competition among the offsprings for food, shelter clothing light mating partner and all other necessities of life. This competition is refereed to as struggle for existence which operated in three ways.
It is a struggle between the individual of the same species. This is most severe competition as the needs of all members are same. The struggle taking place between the different species of living beings is called interspecific struggle.
This is very common because some living beings are food for others. It is the struggle of living organisms against the physical environments like cyclone, earth quake, flood, drought, extreme heat and cold etc.
The differences of offsprings from their same species are called variations. These are the most important aspects of evolution. No two individuals were exactly alike. Such variations were of two kinds, some were inheritable while others were not inheritable.
Darwin was not aware of the principles of heredity and hence could not explain satisfactory the causes of such variation. Further, the variation may be beneficial, harmful or neutral.
The beneficial variations help the organisms to survive while the harmful variations hinder and handicap the organisms for survival.
Neutral variations have no role in evolution.Darwin's Theory of Evolution Essay - James Hutton was born June 3rd, , in Edinburgh, Scotland. He was a Scottish farmer and a naturalist, later in life he was known as the father of modern geology.
We Can Write a Custom Essay on Darwin's Theory of Evolution for You! Darwin's theory was widely hailed at the time of its publication as being an excellent explanation for the diversity of living things on our planet, and as time has passed, it has only gained more acceptance.
Darwin read Thomas Malthus’s Essay on Populations. Malthus () was an economist who wrote that people always tend to over-reproduce, but that the resources they depend upon don’t reproduce fast enough to continue to provide for the extended population.
The essay, indeed, adds nothing material to the discussion of evolution, although it states one side of the case moderately well, as far as it goes.
Dr. Hodge approaches the subject from the side of systematic theology, and considers it mainly in its bearing upon the origin and original state of man. This free Science essay on Essay: Evolution and Charles Darwin is perfect for Science students to use as an example.
Free Essay: There are many reasons why people should believe in Darwin’s Theory of Evolution. One of the more compelling reasons is the anatomical.