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Explain briefly about the selenium Toxicity?
There is a narrow margin between the beneficial and harmful intakes of selenium. The level at which selenosis occurs is not well-defined but threshold for toxicity appears to be 850-900 μg per day. Symptoms of chronic toxicity include brittle hair and nails, skin lesions with secondary infections and garlic odour in the breath. Chronic selenium poisoning in people is characterized primarily by loss of hair and changes in finger nail morphology. In some cases, skin lesions may occur.
What is an endospore? An endospore is a specialized, highly resistant, dormant structure formed within the vegetative cell of some bacteria e.g. Bacillus (rod), Clostridium (ro
Pollen Tube Structure The pollen tube in the stigma is filled with cytoplasm containing numerous mitochondria and dictyosomes. The number of dictyosome cisternae is reduced i
Explain the Phase Contrast Microscop? Unpigmented and unstained living cells can be easily observed by phase contrast microscope. It has a special objective and a condenser th
Q. What is biodiversity? The Biological diversity is the variety of species of living beings of an ecosystem. In the ecosystems which are more biodiverse, like tropical forests
why is virus an exception of cell theory
Pre-Embryo - Human Development About thirty hours after fertilization the zygote goes through mitosis giving rise to 2 blastomeres. These blastomeres go through further cleava
Define risk of stress fracture among Athletes? There is an increased risk of stress fracture among athletes which is associated with lower calcium intake and lower bone density
Polyenes: amphotericin b Amphotericin B products are the only polyenes currently available for systemic treatment of fungal infections. Nystatin, another polyene, is only avai
Define Recommended Dietary Allowances for Vitamin D? The recommendations of vitamin D are expressed as IU. 1 IU is defined as the activity contained in 0.025 mcg of cholecalci
Explain the Analysis of food production? The agricultural sector is known for its diversity and heterogeneity of decisions right from the farm to the entire marketing system. A
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