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Minerals and Trace Elements
Oxygen, carbon, hydrogen and nitrogen are the most common elements that make up 96% of the total weight of a mammal. The next most abundant elements are calcium, phosphorus, potassium, sulphur, sodium, chlorine and magnesium. These make up nearly the remaining 4%.
Fifteen additional elements are required but their total combined amount in mammalian body is less than 0.01% of the body weight. Of the known 90 naturally occurring elements how many are essential for life? This is not known for many animals. In humans 26 elements are known to be necessary.
Fungi are a very diverse group of organisms and have a significant impact on the production, spoilage and safety of food. Molds have not only served to synthesize antibiotics but a
There are three steps of PCR a) Denaturation. The reaction combination is heated to 95°C for a short time period (about 15-30 sec) to denature the goal DNA into one strands w
Q. How to investigate aortic stenosis by Roentgenogram? Cardiac enlargement does not occur in pure compensated aortic stenosis. Post stenotic dilatation of aorta may be seen. F
What are the differences between vertebrates and the other chordates? Vertebrates are dissimilar because they have a spinal column (vertebral column). In these animals the noto
Define Fats requirements of school children and adolescents? The linoleic acid requirements for school children and adolescents have been set at 3 en%. In terms of visible fats
T r ad i tional Uses of dung Dung has an astonishing and myriad variety of uses which have been developed over a period of time. Dung patties ( gootee ) are mainly used by
how efect of gravity on roots?
Explain the Acoelomates - Animals without a Body Cavity? The simplest group of animals that has bilateral symmetry and a solid body (acoelomate) is the Platyhelminthes. Phy
How does the structure of a crab relate to its habitat? It's difficult exoskeleton protects it for most predators & keeps water off its flesh. The claws are used for mating due
Explain about the Freezing - method of food preservation? Freezing (-18°C to - 40°C): In freezing, water in food turns into ice and makes unavailable for reactions to occur, an
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