Biology
Grade-9
Easy
Question
Darwinism explained the inheritance of over-specialized organs.
- True
- False
Hint:
Darwinism does not explain vestigial or over specialized organism.
The correct answer is 'False'.
Vestigial or over-specialized organs are those that have outgrown their function. They have become a barrier to the animal, such as branching antlers of deer, elephant tusks, and so on. Darwinism could not explain the reason behind the existence of such organs to date.
Hence, the given statement is false.
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- With time small changes occur in the organism and these make them different than other animals of the same category. Thus variations occur.
- Mutations are sudden changes that occur at the molecular level, it changes the genome of an organism.
- Sexual reproduction is also a source of change. As it also causes variations in offspring's. At the time of gamete formation some changes occurs due to recombination.
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- This is called natural selection.
