1. We know that by the process of gradual and continuous change, living organisms have evolved. After a number of experiments, scientists have established that genes are the segments of DNA. These DNA carries genetic information from generation to generation. Richard Ebright worked on his basis. He raiRead more

    We know that by the process of gradual and continuous change, living organisms have evolved. After a number of experiments, scientists have established that genes are the segments of DNA. These DNA carries genetic information from generation to generation. Richard Ebright worked on his basis. He raised flock of butterflies and raised the eggs of female Monarch. He studied the various stages of female Monarch. He further studied the cause of a viral disease that killed all Monarch caterpillars. Next he tried to find similarities between viceroy butterflies and monarchs. Study of insect’s hormone further give a new theory on the life of cells. They found the hormone behind butterfly’s full development. Thus, all these experiments led him to form a theory that cells grew from a monarch’s wings. The cell would divide and grow in a normal butterfly. If they were fed into a hormone from the gold spots. Thus, he proved a new cell theory which formed the blue print of DNA.
    If I am given a chance I would like to work in the sphere of stem cell which has a very wide range and would be a great keep for future.

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  2. Science involves experiments, analysis, hypothesis and conclusions. By simply reading we can just get facts but cannot get the reasons behind a particular result. Many diseases which were thought to be incurable in the past have been overcome by means of scientific inventions and discoveries. SubjecRead more

    Science involves experiments, analysis, hypothesis and conclusions. By simply reading we can just get facts but cannot get the reasons behind a particular result. Many diseases which were thought to be incurable in the past have been overcome by means of scientific inventions and discoveries.
    Subjects like History or Economics may not be regarded as science in vague terms. But if we go deep in these subjects, we find that Economics is a science of human behaviour and paradoxes. Either it is observing of human behaviour or historical building. It is the experiment which enables us to form scientific theory.

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  3. The author mentions three qualities that go as the perfect ingredients into the making of a scientist—a first-rate mind, curiosity and the will to win for the right reasons. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/english/

    The author mentions three qualities that go as the perfect ingredients into the making of a scientist—a first-rate mind, curiosity and the will to win for the right reasons.

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  4. After he lost at the science fair he understood that he had to do real experiments instead to making them look clean and neat. He made an experiment to find out what causes the viral disease that kills nearly all monarch caterpillars every few years. He also undertook a project to test the theory thRead more

    After he lost at the science fair he understood that he had to do real experiments instead to making them look clean and neat. He made an experiment to find out what causes the viral disease that kills nearly all monarch caterpillars every few years. He also undertook a project to test the theory that vicerory butterflies copy monarches to survive.

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  5. Edbright realizes that mere display of something does not mean science. To win at a science fair he will have to do real experiments. He said that his entry was slides of frog tissues under the microscope while other who had won had tried to do real experiments. For more answers visit to website: htRead more

    Edbright realizes that mere display of something does not mean science. To win at a science fair he will have to do real experiments. He said that his entry was slides of frog tissues under the microscope while other who had won had tried to do real experiments.

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