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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.
Explain Procambium in primary growth in shoot ? The vascular tissue in the shoot is produced from a primary tissue called the procambium, located in the apical meristem. New vas
Which are the more abundant ribosomes in secretory cells - the free cytoplasmic ribosomes or those associated with the rough endoplasmic reticulum? Free cytoplasmic ribosomes
Define Major Sources of water - Water Intake? The preformed water that we consume as water or as beverage. This will include both preformed water in fluids and in foods. The am
Impulses reaching the AV node from the atria are delayed a little as they pass through the trunk and crura. The impulses first reach the papillary muscles and their contraction clo
Q. Descriptions of the genera? A manual is a book that contains information on the area of coverage and keys and descriptions of the families, genera and species including the
Determine about the Colloblast cell? The unique sticky discharge cells found in the tentacles of ctenophorans. They are used to capture prey, and although cnidoblasts resemble
ERRORS IN FERTILIZATION - 1. Polyspermy - When more than one sperms are fused in an ovum, this condition is called polyspermy. 2. Polygynae - During oogen
The Deoxyribonucleic acid or also called as DNA molecules are informational molecules encoding the genetic instructions used in the functioning and development of all known living
Explain the Tubal Ligation This process is the most commonly utilized method of female sterilization. Tubal ligations are generally done in an outpatient surgical center. Thr
Graphs are a way to convey information and trends in a convenient fashion. For this week's Discussion Board you should search the internet for a graph related to biology. Provide u
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