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प्रश्न
Answer the following question.
State the two principal outcomes of the experiments conducted by Louis Pasteur on the origin of life.
उत्तर
Louis Pasteur by careful experimentation demonstrated that:
- Life comes only from pre-existing life.
- In pre-sterilized flasks, life did not come from killed yeast while in another flask open to the air; new organisms arose from killed yeast.
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संबंधित प्रश्न
Describe the Miller and Urey experiment on the origin of life
Answer the following question.
State two postulates of Oparin and Haldane with reference to the origin of life.
The forelimbs of bat and human are examples of ______ organs.
Higher Order Thinking Skill (HOT)
Octopus, cockroach and frog all have eyes. Can we group these animals together to establish a common evolutionary origin. Justify your answer.
According to Oparin, which one of the following gases was not present in the primitive atmosphere of the earth?
"Continually of germplasm" theory was given by ______.
Which was ale sent in the atmosphere at the time of origin of life?
Miller performed experiment to prove abiogenetic molecular evolution of life. Which molecule was not present in Miller's experiment?
Match the scientists listed under column ‘I’ with ideas listed column ‘II.
| Column I | Column II |
| A. Darwin | i. abiogenesis |
| B. Oparin | ii. use and disuse of organs |
| C. Lamarck | iii.continental drift theory |
| D. Wagner | iv. evolution by natural selection |
How does the water come out through the surface of porous earthen pot?
