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प्रश्न
Objection to Darwin's theory of natural selection.
Write the objection raised against Darwin's theory of natural selection.
Write any two objections that were raised against Darwin's Theory of Natural Selection.
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उत्तर
- Natural selection is not the only factor responsible for evolution
- Darwin did not mention any explanation about useful and useless modifications
- There is no explanation about slow changes and abrupt changes.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
State the two key concept of Darwinian theory.
Name and define the three types of natural selection.
All organisms produce more young ones. Comment
Answer each question in ‘One’ sentence only:
Identify which one of the following is a test cross.
The theory of Natural Selection was proposed by
Give the scientific name of the organism which is cited as the classical example of "natural selection".
List any three drawbacks of Darwinism.
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
In which book Darwin had published his theory of Natural selection?
Identify the two organisms which are now extinct and are studied from their fossils.
Wild cabbage has evolved into new varieties like cabbage, broccoli, and cauliflower by ______
Select the correct statement.
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 |
The ship on which Darwin was appointed as Naturalist was:
According to Darwin, two different areas within a continent have different species because they have different:
Theory of natural selection dwells on:
Match List - I with List - II.
| List - I | List II | ||
| (a) | Adaptive radiation | (i) | Selection of resistant varieties due to excessive use of herbicides and pesticides |
| (b) | Convergent evolution | (ii) | Bones of forelimbs in Man and Whale |
| (c) | Divergent evolution | (iii) | Wings of Butterfly and Bird |
| (d) | Evolution by anthropo- genic action | (iv) | Darwin Finches |
Choose the correct answer from the options given below.
Charles Darwin explained the origin of species through ______.
Mention four main postulates of Darwin's theory.
Differentiate between Lamarck's Theory and Darwin's Theory.
Define the following term:
Natural selection
DDT resistant mosquitoes and different break sizes of African seed cracker finches show ______ type of selection respectively.
