English
Maharashtra State BoardSSC (English Medium) 10th Standard

Write a short note based on the information known to you. Darwin’s theory of natural selection.

Advertisements
Advertisements

Question

Write a short note based on the information known to you.

Darwin’s theory of natural selection.

Short/Brief Note
Advertisements

Solution

  1. Darwin is famous for the theory which he published in the book titled ‘Origin of Species’.
  2. Darwin’s theory of natural selection is based on the concept of survival of the fittest.
  3. Organisms can reproduce prolifically.
  4. Under limited resources, organisms compete with one another in a life-threatening manner for survival.
  5. According to this theory, only those organisms survive which show modifications for winning the competition. The selected organisms then give rise to new species with their specific set of characters.
shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Heredity and Evolution - Exercises [Page 11]

APPEARS IN

Balbharati Science and Technology 2 [English] Standard 10 Maharashtra State Board
Chapter 1 Heredity and Evolution
Exercises | Q 4. b. | Page 11
SCERT Maharashtra Science and Technology Part 2 [English] Standard 10 Maharashtra State Board
Chapter 1 Heredity and Evolution
Answer the following questions | Q 9

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

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.


What is "fitness of an individual" according to Darwin?


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:

  1. What name has been given to this phenomenon?
  2. Give the common name and the scientific name of the insect involved in this phenomenon.
  3. Briefly mention why the changes shown in the two figures appeared.
  4. The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
    1. Name and explain the said theory.
    2. Give the name of the scientist who gave this theory.

Natural selection is a driving force for evolution-How?


Differences between organisms in a species are described as variations. Which of the following would you describe as a continuous variation?


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 ______  


What is the ancient name for all human beings?


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:


Species occurring in the different geographical areas are called as ______.


Distinguish between directional, stabilizing and disruptive selection.


Industrial melanism was observed in ______.


Mention four main postulates of Darwin's theory.


DDT resistant mosquitoes and different break sizes of African seed cracker finches show ______ type of selection respectively.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×