Advertisements
Advertisements
प्रश्न
What are objections raised against Darwin's theory?
उत्तर
Some of the main objections raised against Darwin’s theory of natural selection are as follows:
- Natural selection is not the only factor responsible for evolution.
- In his theory, Darwin did not explain the inheritance of useful and useless modifications.
- No explanation regarding slow and abrupt changes was provided in this theory.
APPEARS IN
संबंधित प्रश्न
Explain the interpretation of Charles Darwin when he observed a variety of smallblack birds on Galapagos Islands.
How do the observations made during moth collection in pre- and post- industrialized era in England support evolution by Natural Selection?
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
What is "fitness of an individual" according to Darwin?
State the two key concept of Darwinian theory.
The largest unit in which gene flow is possible is :
(1) Organism
(2) Population
(3) Species
(4) Genes
Write short notes based upon the information known to you.
Darwin’s theory of natural selection
Give the scientific name of the organism which is cited as the classical example of "natural selection".
Industrial melanism provides a good example of natural selection. Discuss.
List any three drawbacks of Darwinism.
Explain the evolution of the long neck of giraffe according to Charles Darwin.
Answer the following question.
How did Charles Darwin express 'fitness'?
The theory of natural selection for evolution was proposed by ______.
The more characteristics two species have in common ______
Which concept was not included in Charles Darwin’s theory of Natural Selection?
Wild cabbage has evolved into new varieties like cabbage, broccoli, and cauliflower by ______
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 |
Which one of the following statement is correct?
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:
Species occurring in the different geographical areas are called as ______.
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.
Write drawbacks of Darwin's theory
Distinguish between directional, stabilizing and disruptive selection.
Industrial melanism was observed in ______.
The selective agent that was responsible for causing the change in peppered moth was ______.
Charles Darwin explained the origin of species through ______.
Which one of the following was not explained by Darwinism?
Industrial melanism was highlighted by ______.
Define the following term:
Speciation
