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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.
A 70-year old woman presents with a 1-hour history of crushing substernal chest pain. Shortly after admission, the patient expires. An autopsy reveals calcium deposits in the intim
Hom o sapiens sapiens (MODER N MAN) - Developed from Cro-Magnon about 10,000 years ago after last glacial period in the regions of Caspian and Mediterranean seas.
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Aerobic Based Water Treatment: Waste water provides organic materials and inorganic nutrients to river waters; this is known as eutrophication. This promotes microbial and plan
xerophytes types
Malpighian Tubules Other arthropods like insects and myriapods and arachnids have Malpighian tubules, the outgrowths of alimentary canal like excretory organs. Malpighian tub
WALL OF EYE BALL - Outer to inner 3 layers present. 1. Sclerotic or fibrous Tunic 2. Choroid or uvea or vescular Tunic. 3. Retina or neuro sensory tunic. Sclerotic
Explain about Cold Preservation - methods of food processing? The metabolism of a living tissue is a function of the temperature of the environment. Low temperatures are used t
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