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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.
Auxins - Plant Growth Substances Julius Sachs (1882) first suggested on the basis of his observations that there are special substances for forming roots and some special subs
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Measles Adults born after 1956 who have not received 2 doses of live measles vaccine (not the killed vaccine that was commonly used in the 1960s) after their first birthday an
Define physiological effects of SCFA? The physiological effects of SCFA's can be summarized as follows. They: Lower the ph in the gastrointestinal tract, which in turn r
An ideal EIA system would: (i) Apply to all projects that are expected to have significant environmental effects and address all impacts that are expected to occur due to t
In 1809, Maggiolo described a process of fabricating and inserting gold roots into freshly extracted sockets. The implant was constructed from the three pieces of gold which were s
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