Advertisements
Advertisements
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.
Advertisements
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 Darwinian theory of evolution with the help of one suitable example.
Name the scientist who influenced Darwin and how ?
Explain the interpretation of Charles Darwin when he observed a variety of smallblack birds on Galapagos Islands.
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
Name and define the three types of natural selection.
The largest unit in which gene flow is possible is :
(1) Organism
(2) Population
(3) Species
(4) Genes
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".
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
Answer the following:
- What name has been given to this phenomenon?
- Give the common name and the scientific name of the insect involved in this phenomenon.
- Briefly mention why the changes shown in the two figures appeared.
- The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
- Name and explain the said theory.
- Give the name of the scientist who gave this theory.
State Darwin’s theory of evolution.
In which book Darwin had published his theory of Natural selection?
What are objections raised against Darwin's theory?
Which concept was not included in Charles Darwin’s theory of Natural Selection?
Natural selection is called ‘survival of the fittest. Which of the following statements best describes an organism?
What is the ancient name for all human beings?
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 |
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:
Distinguish between directional, stabilizing and disruptive selection.
The famous book "The Origin of Species" was written by ______.
Mention four main postulates of Darwin's theory.
Define the following term:
Speciation
