Advertisements
Advertisements
प्रश्न
In which book Darwin had published his theory of Natural selection?
Advertisements
उत्तर
Origin of Species
APPEARS IN
संबंधित प्रश्न
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
Write a short note based on the information known to you.
Darwin’s theory of natural selection.
The theory of Natural Selection was proposed by
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.
Natural selection is a driving force for evolution-How?
Identify the two organisms which are now extinct and are studied from their fossils.
A basket of vegetables contains carrot, potato, radish and tomato.
Which of them represent the correct homologous structures?
Select the correct statement.
If the fossil of an organism is found in the deeper layers of earth, then we can predict that
What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor?
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 |
Write drawbacks of Darwin's theory
Distinguish between directional, stabilizing and disruptive selection.
Define the following term:
Natural selection
Match the name of the scientist in Column I with the name of the theory in Column II.
| Column (I) | Column (II) | ||
|---|---|---|---|
| i. | August Weisman | a. | Theory of origin of species |
| ii. | Hugo de Vries | b. | Theory of chemical evolution |
| iii. | Charles Darwin | c. | Theory of continuity of germplasm |
| iv. | Oparin Haldane | d. | Mutation theory |
Choose the correct option.
Differences between individuals of the same species that arise naturally and can be passed to offspring are called:
Who accompanied Darwin on his voyage aboard the HMS Beagle?
What was the lifespan of Alfred Russel Wallace, the young English naturalist who independently concluded that species evolve through variation and natural selection?
