Which of the following is the correct sequence of events in the origin of new species according to Darwinism ?

Options

A. Natural selection , variation and their inheritance, survival of fittest, Struggle for existence, high rate of reproduction
B. High rate of reproduction, constancy in number, struggle for existence, inheritable variations, survival of fittest, natural selection .
C. High rate of reproduction, variations, constancy in number , struggle for existence, survival of fittest
D. Variation , high rate of reproduction , constancey in number , struggle for existence, survival of fittest, natural selection

Answer

To determine the correct sequence of events in the origin of new species according to Darwinism, we can break down the process into several key steps based on the principles of natural selection as outlined by Charles Darwin.

### Step-by-Step Solution:

1. **High Rate of Reproduction**: Initially, when environmental conditions are favorable (such as abundant food and resources), organisms reproduce at a high rate. This leads to an increase in the population size.

2. **Struggle for Existence**: As the population grows, resources become limited. This leads to competition among individuals for food, space, and other necessities. Natural calamities or changes in the environment can also contribute to this struggle.

3. **Variation and Inheritance**: Within any population, there are variations among individuals. These variations can be due to genetic differences. Some individuals may possess traits that give them an advantage in the struggle for existence.

4. **Survival of the Fittest**: The individuals that are better adapted to their environment are more likely to survive and reproduce. This concept is often summarized as "survival of the fittest," where "fittest" refers to those best suited to their environment, not necessarily the strongest.

5. **Natural Selection**: Over time, the traits that enhance survival and reproduction become more common in the population. This process is known as natural selection, where nature "selects" for advantageous traits.

6. **Formation of New Species**: Eventually, as these processes continue over many generations, the accumulated changes can lead to the emergence of new species, as populations diverge and adapt to different environments.

### Final Sequence:
The correct sequence of events according to Darwinism is:
1. High rate of reproduction
2. Struggle for existence
3. Variation and inheritance
4. Survival of the fittest
5. Natural selection
6. Formation of new species