Both nucellus and endosperm have abundant reserve food materials. How is their food reservoir utilised in angiosperms ?
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Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
Gymnosperms and angiosperms are seed-producing plants with diplontic life cycles. In gymnosperms, the sporophylls are aggregated to form compact cones. The microsporophylls are broad and are not distinguished into filaments and...
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Define transgenic animals. Explain in detail any four areas where they can be utilised.
Transgenic animals are products of genetic engineering and express specificgene(s) from totally unrelated source. Following are the four main areas where they can be utilised 1. To study normal physiology and development these...
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WATER IS POURING INTO A CUBOIDAL RESERVOIR AT THE RATE OF 60 LITRES PER MINUTE.IF THE VOLUME OF RESERVOIR IS 108m3.
Rate of flow of water = 60 litres/minute Volume of the tank = 108 m3 1 m3 = 1000 litres 108 m3= 108000 litres Time taken to fill the complete tank = 108000/60 =...
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which property of concave mirror is utilised for using them as shaving mirrors?
When an object is placed between the pole and focus of concave mirror a magnified, erect and virtual image is obtained.
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Photosynthesis requires chlorophyll, and a few other raw materials. Add the missing raw materials to the list
(a) Sunlight/light energy, (b) carbondioxide.
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Ruminants such as cows and buffaloes swallow their food hurriedly and then sit restfully and chew their food. Can you reason why?
Hint (to digest the food completely.)
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Which among the following materials would you identify as soft materials and why?
soft materials because they can be compressed or scratched easily.
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The susceptibility of a magnetic materials is –4.2 × 10^-6. Name the type of magnetic materials it represents.
Susceptibility of material is negative, so given material is diamagnetic.
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What are resources which are found in a region but have not been utilised called?
Potential resources
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When the Reserve Bank of India announces an increase of the Cash Reserve Rate, what does it mean?
(a) CRR or the Cash Reserve Ratio is that ratio of the total deposits held by a bank which it has to keep with the central bank of country.
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