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प्रश्न
The forelimbs of bat and human are examples of ______ organs.
उत्तर
The forelimbs of bat and human are examples of Homologous organs.
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संबंधित प्रश्न
Explain the term chemogeny
Describe the Miller and Urey experiment on the origin of life
Higher Order Thinking Skill (HOT)
Arun was playing in the garden. Suddenly he saw a dragon fly sitting on a plant. He observed the wings of it. He thought it looked similar to a wing of a crow. Is he correct? Give reason for your answer.
Evolution was termed RNA world due to the discovery of:
"Continually of germplasm" theory was given by ______.
Oparin's theory is based on
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 |
In 1953 S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre-existing non-living organic molecules. The primitive earth conditions created include ______.
Louis Pasteur’s experiments, if you recall, proved that life can arise from only pre-existing life. Can we correct this as life evolves from pre-existent life or otherwise we will never answer the question as to how the first forms of life arose? Comment.
Why is nascent oxygen supported to be toxic to aerobic life forms?
