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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.
why obelia is of special interest in zoology
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List the routine treatment sequence for an implant patient. The different phases are - Preliminary treatment - Stage I surgical phase - Stage II surgery and Prosthetic
The biomass available for consumption by the herbivores and the decomposers is called : 1. Net primary productivity 2. Secondary productivity 3. Standing crop 4. Gross
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Define Factors influencing uptake from lumen to intestinal cells? inhibition by intrinsic matrix, inhibition by dietary fiber sources, differential crowding by
What do digestive enzymes do to food? Digestive enzymes suspend food; make food soluble, break large insoluble food molecules into smaller, soluble molecules
significant role of suicide cells?
Differential reinforcement of low response rate (DRL) This is used to encourage low rates of responding. Example: "If you ask me for a potato chip no more than once every 10 mi
what is mitosis and meiosis? what do they do?
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