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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Survival of Fittest : Darwin : : Acquired Characters : .............................. - Science and Technology 2

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प्रश्न

Survival of fittest : Darwin : : Acquired characters : ..............................

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उत्तर

Survival of fittest : Darwin : : Acquired characters : Lamarck

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2018-2019 (March) Balbharati Model Question Paper Set 2

संबंधित प्रश्‍न

Write short notes based upon the information known to you.

Lamarckism


a) Explain in brief - Lamarck’s principle of ‘use or disuse of organs’.
b) Give two examples.
c) What are ‘acquired characters’?


The first scientist who proposed his theory for evolution was ______.


Mention the two principles through which Lamarck explained his ideas.


Briefly discuss Lamarckian Theory of Inheritance citing an appropriate example.


Explain the occurrence of vestigial organs on the basis of Lamarck's theory of use and disuse.


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:

Give the common name and the scientific name of the insect involved in this phenomenon.


Theory of evolution : Darwin : : ____________ : Lamarck


What is inheritance of acquired characters?


Observe the picture and answer the following questions.

  1. The given picture indicates which principle?
  2. Explain that principle in your language.
  3. What is the meaning of acquired characteristics?

The ‘use and disuse theory’ was proposed by ______.


The characters developed by the animals during their life time, in response to the environmental changes are called ______.


The use and disuse theory of organs’ was postulated by Charles Darwin.


The degenerated wing of a kiwi is an acquired character. Why is it an acquired character?


Observe the following figure and explain the concept.


The theory proposed by Lamarck is ______.


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