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LIGHTAll of us know that the sun is the ultimate source of energy for all activities in our biosphere. The electromagnetic radiations from the sun supply energy which warms up the earth and the atmosphere to provide a favourable global temperature for the living organisms. In addition. light plays a variety of roles in the living world. It is essential for photosynthesis, the process by which light is converted into usable chemical energy. It is involved in the transmission of information, for instance, it helps plants and animals to programme their life cycles. coordinates the opening of buds and flowers, dropping of leaves and a variety of other physiological processes. Variation in theamount of light generally affects the local distribution of plants. In animals light regulates reproduction, hibernation and migration and of course makes vision possible. All these biological phenomena are readily influenced by variation in the intensity, and by seasonal or diurnal variations of light.
are viruses cellular organisms
Q. Explain the types of classification of plants? It is practically impossible for anyone to study all the plants of the world, 'even if one spends whole life. Thus, it is nece
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Define the term Prebiotics? Dietary Sources and their Mode of Action/health Effects We have already seen how prebiotics are defined. Let us go a little in-depth about them. Pre
Autoradiography Autoradiography is a modification of the radioactive tracer technique. In this technique, the radioactivity is detected by a thin film of photographic emulsion
Q. Under which conditions do aerobic cells carry out fermentation? Some cells that usually obtain energy from aerobic cellular respiration can perform fermentation when oxygen
Which one of the following kinds of animals are triploblastic? 1. Flat worms 2. Sponges 3. Ctenophores 4. Corals Flat worms
It is a category of viruses having RNA genome and reverse transcriptase enzyme within virus cuspid.
Explain about the Ocular Haemodynamics. The pressure in the ocular arteries can be measured by optical ophthalmodynamometer. The intraocular pressure is raised to the level tha
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