Biology
Grade-8
Easy

Question

Artificial selection is  ______.

  1. A new concept
  2. Discovered by Darwin and used ever since
  3. Used for thousands of years
  4. A 19th century concept

hintHint:

The term 'artificial selection was coined by Charles Darwin. This is the process through which human develops such breeds of animals and plants that have desirable traits. This is possible by selective breeding.

The correct answer is: Used for thousands of years


    Various ancient varieties of crops are evidence of the fact that artificial breeding is used for thousand of years.

    • Artificial selection was discovered and explained by scientist Charles Darwin in the 19th century.
    • But this process is not a new one and has been used for thousands of years ago.
    • Ancient humans developed different breeds of animals and plants from wild ancestors. 
    • They developed breeds of animals for domestication and plants for crop production.
    • They were familiar with the results of inbreeding and hybridization.

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    • Ancient human developed such breeds of corn according to their needs and benefits.
    • Through inbreeding and hybridization such varieties are developed.
    • These varieties are able to grow in different soil and climatic conditions. Also, these are resistant for water loss. 

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    • The variety of corns are developed through selective breeding.
    • Ancient human developed such breeds of corn according to their needs and benefits.
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    Artificial selection is also known as________.

    • Artificial selection is a process in which humans identify some desirable traits in organisms and through selective breeding, these traits are accumulated in the next generations of organisms.
    • Natural selection is caused by random mating while artificial selection is caused by selective breeding.
    • Human started the domestication of organisms that are beneficial to them many years ago. Some traits are useful for humans while some are not.
    • So, the process of artificial selection allows human to grow plants with desirable traits and to keep the domestic animals with desired traits. 

    Artificial selection is also known as________.

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    • Artificial selection is a process in which humans identify some desirable traits in organisms and through selective breeding, these traits are accumulated in the next generations of organisms.
    • Natural selection is caused by random mating while artificial selection is caused by selective breeding.
    • Human started the domestication of organisms that are beneficial to them many years ago. Some traits are useful for humans while some are not.
    • So, the process of artificial selection allows human to grow plants with desirable traits and to keep the domestic animals with desired traits. 

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