Darwin evolution theory

The Darwin evolution theory emerges from macro-evolution. The name of the scientist was Charles Robert Darwin (12 February 1809- 19 April 1882). He proposed the theory natural selection. Darwin was naturalist, geologist and biologist. The Darwin wrote the book “The Origin of Species”.

The two important rules by Darwin:

A. Law of parcimony :It states that, the simplest model or the simple things which re connected or they behave in the simplest, so easily acceptable things are selected.

B. Okham’s principle: It is base on principle of philosophy. Consider there are 2 explanation regarding particular topic. In such case the simpler explanation is usually selected. It is called as Okham’s principle.

Postulates of Darwin

1) Over production: According to this term, like human beings all the living organisms have tendency to produce more and more. The number of progeny will higher than that of parent. For example: one tree gives rise to 1000 seeds and 1 fish can lay 100s of eggs.

2) Struggle for existence:It is the competition for food, space and mating. Each organism compete for their survival such as demands of food, space and resources, when these factors become limited, then only a few amount of organism survives. It is called as struggle for existence. For example: a one common population in which population is normal, but after over production the number of living organisms or population increases. As the population increases the resources becomes limited such as food availability decreases, space decreases. Therefore competition in population occurs, it is called as struggle for existence.

3) Variations: Every living organism have some sort of differences called variations. Variation arises during reproduction, When parent 1 and parent 2 have gametogenesis at such condition genetical changes occur and due to which variations occur.

Darwin notes down a very important thing is every living organism have variations.

4) Survival of the fittest: Survival of the fittest can be termed as winner of the better competitor. The living organisms which have ability to reproduce more than others that means have more reproduction capacity. They have less demand for survival

5) Origin of new species:According to Darwin, variations are transferring from one generation to the next generation and formation of new species occurs.

Drawbacks of Darwin:

1) Darwin work was against the bible.

2) Any selection reduce population size.

3) How do variation arise.

Question and answers:

1.) Who is Darwin?

Answer: The Darwin evolution theory emerges from macro-evolution. The name of the scientist was Charles Robert Darwin (12 February 1809- 19 April 1882). He proposed the theory natural selection. Darwin was naturalist, geologist and biologist. The Darwin wrote the book “The Origin of Species”.

2.) What is parcimony law?

Answer: It states that, the simplest model or the simple things which re connected or they behave in the simplest, so easily acceptable things are selected.

3.) What is Okham’s principle?

Answer:It is base on principle of philosophy. Consider there are 2 explanation regarding particular topic. In such case the simpler explanation is usually selected. It is called as Okham’s principle.

4.) What are the postulates of Darwin?

Answer: 1) Over production: According to this term, like human beings all the living organisms have tendency to produce more and more. The number of progeny will higher than that of parent. For example: one tree gives rise to 1000 seeds and 1 fish can lay 100s of eggs.

2) Struggle for existence:It is the competition for food, space and mating. Each organism compete for their survival such as demands of food, space and resources, when these factors become limited, then only a few amount of organism survives. It is called as struggle for existence. For example: a one common population in which population is normal, but after over production the number of living organisms or population increases. As the population increases the resources becomes limited such as food availability decreases, space decreases. Therefore competition in population occurs, it is called as struggle for existence.

3) Variations: Every living organism have some sort of differences called variations. Variation arises during reproduction, When parent 1 and parent 2 have gametogenesis at such condition genetical changes occur and due to which variations occur.

Darwin note down a very important thing is every living organism have variations.

4) Survival of the fittest: Survival of the fittest can be termed as winner of the better competitor. The living organisms which have ability to reproduce more than others that means have more reproduction capacity. They have less demand for survival

5) Origin of new species:According to Darwin, variations are transferring from one generation to the next generation and formation of new species occurs.

6.) What are the drawbacks of Darwin?

Answer:

1) Darwin work was against the bible.

2) Any selection reduce population size.

3) How do variation arise.


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