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Water loss during excretion
In terrestrial animals body water is also lost during excretion of nitrogenous wastes. A number of physiological adaptations have taken place to minimise the loss of water associated with this phenomena. You have learnt in the previous Unit that among terrestrial invertebrates, insects are highly effective in conserving water.
In terrestrial vertebrates, kidney is the chief organ of osmoregulation and excretion. The loop of Henle is the specialised part of the nephron which produces hyperosmotic urine. Amphibians and reptiles which are unable to produce a hyperosmotic urine, as an adaptive consequence, cease urine production entirely during the period of osmotic stress.
FLUORIDE It is mostly available in drinking water. Fluoride is essential for the formation of enamel of the teeth. Deficiency of fluoride causes weakness of enamel.
Q. What is the heterophagic intracellular digestion and How is this process accomplished? Heterophagic intracellular digestion is the breaking into smaller substances of extern
Many vitamins are enzyme cofactors that cannot be synthesized by the organism and must be attained from the diet.
Explain about the Health Economics and Economics of Malnutrition? In the earlier units on nutritional problems, we learnt that there are many causes of malnutrition, socioecono
need different types of information about fishes and their pictures
To ensure the building's resistance to potential earthquakes it should be configured, detailed and constructed accordingly. Any weakness in this regard may affect the building's re
Define Methodology for Half and Full Saturation Test? 1. Take 5 ml each of starch and dextrin solutions, add 5 ml of saturated solution of ammonium sulfate. Shake thoroughly an
The secretary coil fills the lumen with a NaCl solution that is isotonic with the blood plasma. As this solution moves upward through the reabsorptive duct, NaCl is reabsorbed into
Syngamy - Protozoan The two gametes may be morphologically similar (isogametes) or dissimilar (anisogametes). The gametes also vary in form, they may be flagellated or amoeboi
Why plants need to do exchange gases with the environment? The Plants need to do gas exchange because they create aerobic cellular respiration (like animals) and they need to r
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