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

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Question

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

Solution

Survival of fittest : Darwin : : Acquired characters : Lamarck

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

RELATED QUESTIONS

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’?


Briefly discuss Lamarckian Theory of Inheritance citing an appropriate example.


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.


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:

Briefly mention why the changes shown in the two figures appeared.


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:

The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.

(i) Name and explain the said theory.

(ii) Give the name of the scientist who gave this theory.


Theory of evolution : Darwin : : ____________ : Lamarck


What is inheritance of acquired characters?


Explain Lamarck’s Principle.


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


Observe the following figure and explain the concept.


The theory proposed by Lamarck is ______.


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