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Capacity to do work is known as energy. It is very important input for all our activities like cooking food, driving vehicle and running industries. The most important challenge that humanity is facing in 21st century is availability of clean, secure and sustainable energy supply.
Energy sources are broadly divided into two categories. Renewable and renewable energy sources which are further divided into many sub categories:
These sources are regenerated by natural processes so that can be used indefinitely. These are:
(i) Solar energy (ii) water (iii) wind
(iv) Tidal (v) biomass (vi) geothermal
(viii) Ocean thermal energy
what are the negative and positive economic importance of snai
Q. Explain about gamma diversity? Gamma (g) richness refers to the rate of change across larger landscape gradients and gamma diversity is a measure of the overall diversity fo
How is gas exchange done in flatworms? Platyhelminthes exchange gases exclusively by diffusion by their body surface. This is only possible because all cells are localized rela
Subphylum Chelicerata. Six pairs of appendages, four pairs being legs, with paired chelicerae (fangs). There are three classes in this phylum.
Centrioles Centrioles is also called cell centre . Centrosome discovered by Benden . T. Boveri called it centrosome. Centrosome is present in all animal eukaryotic
Define about skeletal muscle? A. The binding of calcium ion to a binding site on the troponin molecule leads to a movement of the tropomyosin molecule that, in turn, exposes a
Cell Theory The term cell was first used by an English cytologist, Robert Hooke (1665) not for unit protoplasmic masses, but for the well defined and empty compartments, he obs
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True cyst: cyst that is completely lined by epithelial tissues.All the lesions are far away without communication with endodontic access or endodontic cavity or periapical
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