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प्रश्न
List any three drawbacks of Darwinism.
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उत्तर
Drawbacks of Darwinism:
- Though his theory is based on the presence of variations, he could not explain the origin of variation, nor could he attach any importance to mutations.
- Darwin could not explain the origin of new characters. It only provides mechanism of modification of already existing characters.
- Over-specialized organs are those that have grown beyond their maximum usefulness. They have become a hindrance for the animal, e.g., branched antlers of deer, tusks of elephants, etc.
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संबंधित प्रश्न
Explain Darwinian theory of evolution with the help of one suitable example.
Name the scientist who influenced Darwin and how ?
How do the observations made during moth collection in pre- and post- industrialized era in England support evolution by Natural Selection?
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
The more characteristics two species have in common ______
Study the following cross and showing self pollination in F1, fill in the blank and answer the question that follows
| Parents | RRYY | × | rryy |
| Round, Yellow | wrinkled, green | ||
| F1- | Rr Yy | × | ? |
| Round, yellow |
What are the key concepts in the evolution theory of Darwin?
Nature has a way of causing organisms that inherit advantageous traits to survive and reproduce more successfully than the ones that do not. This process is known as ______.
Charles Darwin explained the origin of species through ______.
Industrial melanism was highlighted by ______.
