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प्रश्न
Name the scientist who invented the first microscope.
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उत्तर
Antony Van Leeuwenhoek
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संबंधित प्रश्न
Make a comparison and write down ways in which plant cells are different from animal cells.
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
- Keep cup A empty
- Put one teaspoon of sugar in cup B
- Put one teaspoon salt in cup C
- Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then, observe the four potato cups and answer the following:
- Explain why water gathers in the hollowed portion of B and C.
- Why is potato A necessary for this experiment?
- Explain why water does not gather in the hollowed-out portions of A and D.
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
Differences between light microscope and electron microscope.
A plant cell can be identified from an animal cell by the :
Write a short answer.
Why is a cell called the structural unit of a living organism?
The instrument used to observe the cell is _____
New cells are produced from the existing cells.
Write about the contribution of Robert Hooke in cell biology.
Robert Hooke saw many objects like Butterfly’s compound eyes, Bee’s wings, etc.
