What types of variability were distinguished by Charles Darwin? What is the essence of the process of struggle

| November 24, 2020 | education

1. What types of variability were distinguished by Charles Darwin? 2. What is the essence of the process of struggle for existence? 3. What is natural selection?

1) Darwin identified the main types of variability: definite, indefinite, kidney variation, correlative, individual, deformities, variability due to crossing and variability due to “the influence of habit and exercise and non-exercise of organs.
2) The struggle for existence is one of the three factors of evolution, together with natural selection and hereditary variability.
The struggle for existence can be intraspecific, interspecific and the struggle with unfavorable environmental conditions.
To put it simply, the struggle for existence is the survival of a living being, which is the essence.
3) Natural selection is a process as a result of which predominantly individuals with changes that are useful under these conditions survive and leave behind offspring.



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