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CAUSES OF EXTINCTION -
1. HUNTING -
2. FOREST FIRES -
It is held that forest fires resulting from human activity or mistake have caused the elimination of many sps. of wild life.
3. DISTRUCTION OF HABITATES -
Destruction of natural habitats causes the most serious threat to wild life.
Habitats are destroyed by many human activities due to development work, deforestation, pollution, cleanliness (vultures are about to extinct).
4. PHYSICAL ALTERATION OF ENVIRONMENT -
Any physical change in the routes of the migratory birds or fishes adversely affects them.
In Chemical Reactions that have a large negative /\Go' a- the total amount of both reactants and products decreases b- the products are less stable than the reactants c- t
What are the main harms caused by vitamin A deficiency? How does this vitamin act in the physiology of vision? Deficiency of vitamin A (retinol) might be cause night blindness
Q. What are varices? Why are they more common in the inferior limbs? Varix means abnormal enlargement of veins and the Varices occur when excessive pressure against the normal
its characterics
MYCOPLASMOSIS Mycoplasma organisms are the smallest free living, lack of cell-wall and bounded by a triple layer of plasma membrane. The organisms are pleuomorphic in shape, viz.
The Klove roughness Discrimination Test The subject must order four blocks covered with varying grades of sandpaper presented behind a blind with regards to degree of roughness
Define Vitamins B 12 Deficiency in Vegans? Because plants do not synthesize vitamin B 12 , individuals who consume diets completely free of animal products (vegan diets) are a
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Q. How is excretion done in fishes? Fishes have a pair of kidneys that filtrate the blood, bony fishes excrete nitrogen as ammonia NH3 (they are ammoniotelic) and cartilaginous
Q. What is transgenic food? The Transgenic beings are animals, microorganisms and plants that contain recombinant DNA that is genes from other microorganisms, plants or animals
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