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The food synthesised by the plants is stored as ______.
Concept: undefined >> undefined
Give two examples each of conductors and insulators of heat.
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No medium is required for transfer of heat by the process of ______.
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Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.
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A wooden spoon is dipped in a cup of ice cream. Its other end ______.
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Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
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Which of the following places is unlikely to be affected by a cyclone?
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The given statements below is correct or not?
A cyclone is formed by a very high-pressure system with very high-speed winds revolving around it
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The given statements below is correct or not?
The coastline of India is not vulnerable to cyclones.
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Explain how soil pollution and soil erosion could be prevented
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In cockroaches, air enters the body through ______.
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Match the items in Column I with those in Column II:
| Column I | Column II | ||
| (a) | Yeast | (i) | Earthworm |
| (b) | Diaphragm | (ii) | Gills |
| (c) | Skin | (iii) | Alcohol |
| (d) | Leaves | (iv) | Chest cavity |
| (e) | Fish | (v) | Stomata |
| (f) | Frog | (vi) | Lungs and skin |
| (vii) | Tracheae |
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Frogs breathe through their skins as well as their lungs.
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The fishes have lungs for respiration.
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The rhythmic expansion and contraction of the heart is called ______.
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A flower may have either male or female reproductive parts. Such a flower is called ______.
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The fusion of male and female gametes is termed as ______.
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Explain what you understand by sexual reproduction.
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Sketch the reproductive parts of a flower.
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How does the process of fertilisation take place in flowers?
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