Question

Which of the following are the objections to Darwin's theory of natural selection?
A. The type of variations that provide the raw material for natural selection is generally non-inheritable.
B. It fails to explain the role of discontinuous variation.
C. It fails to explain the possible reasons behind over speciation.
D. All of the above.

Answer 1

Darwin clarified that by gathering differences from generation to generation, the survival of the fittest helps subsequent generations to become better adapted to the environment. Darwinism is the evolutionary theory proposed by Charles Robert Darwin. By way of natural selection, he published his theory of evolution in a book called “The Origin of Organisms”.

Complete answer:
Individuals that have harmful differences are reproductively less competitive, according to Darwin. By increasing the capacity of an organism with beneficial variations helps to replicate and to make the offspring more fertile. It is said that they are the fittest species and that they can only survive. He explained the adaptations of some inherited organisms with this phenomenon but failed to clarify the mechanism by which the variations occur.
The following are some of the objections to the theory of natural selection, which Darwin loosely explained:
Darwin's theory emphasizes minor, fluctuating variations that are essentially inheritable and can play no role in evolution. The consequences of use and disuse and the existence of vestigial organs are not explained by his theory. Darwin could not clarify why by natural selection, instincts are acquired and changed. He was unable to distinguish between somatic and germinal variations and viewed both variations as inheritable. Degeneracy cannot be compensated for by natural selection. One of the classical objections to natural selection is that 'dilution' will lose fresh diversity as the people who own them breed without them with others. Darwin implicitly supported the context of 'pangenesis theory' which is the Lamarckian concept of inheritance of acquired characters, which cannot be accepted in the light of genetic information.
Hence, option D-All of the above is the appropriate answer.

Note: Artificial selection appeals to humans because it is quicker than natural selection and makes it possible for humans to breed animals according to their needs. Mating pairs of pigeons are often matched together based on their chromosomes to produce the most desirable characteristics in their offspring, like many animals kept in human captivity.