Mention Darwin’s two major contributions to evolutionary ideas.
Mention Darwin’s two major contributions to evolutionary ideas.
Ans: – Darwin major contribution is –
(i) organisms through ancestry
(ii) Theory of Natural Selection.
What were the primitive conditions on earth. Tell your friend/cousin/colleague. Then ask your friend to name the gas which was absent without which today no life can exist.
Ans: – This earth is created about a million years ago. When this earth created then the condition was not as today’s situation. Years after years the temperature changes to this and make an environment of living today ecosystem.
What are the main points of Oparins’ theory of Origin of life? Make a five-point quiz on it.
Ans: – The main point in the theory of origin of life is the starting period of life or the condition where the life is created and develop.
Write a note on Neo-Darwinism.
Ans: – The new Darwinism is light of progress in genetics. Which clearly tells us that the about the time going on the new things would be accepted and goes on.
List the five major events during geological time period beginning from origin of life. You may begin with origin of animals.
Ans: – 4600 mya: – planet form, 4500mya: – earth core and crust form, 4400 mya: – earth first ocean form, 3850 mya: – earth first life came, 1500mya: – oxygen came.
State major trends and stages of human evolution. Do you think humans are still evolving? Write five sentences to justify your response.
Ans: – The evolution is not struck it changing its pattern and this change we will see in future something about years after. In this way the new characteristics would be gain and goes on developing.
Earlier groups of animals became extinct due to natural happenings. Today, how is it that wild animals have become endangered and are heading towards extinction.
Ans: – Darwin in his theory tells us that which will capable of developing itself will go further otherwise will be extinct near future so some of animal doesn’t make themselves survived.
Write a ten sentences conversation between your father and yourself justifying the need for conservation of animals living in our forest.
Ans: – As the day by day the nature of the earth is changing so in near future if we don’t take any necessary steps then it will be harmful for our ecosystem as all are bonded in a chain.
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