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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.
Q How different is the amphibian heart from the fish heart? The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous.
The Henderson-Hasselbalch equation expresses the pH of a solution as: Select one: a. The equilibrium constant of the acid and the dissociated form of the weak acid. b. The
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In a properly functioning negative feedback system, the A. value of the controlled variable will always be very close to the threshold value when the system is in steady state.
Explain the Principle of Nelson-Somogyi Method? Glucose is estimated by Nelson-Somogyi method. We begin our study of this method by getting to know the principle involved in th
Members belonging to the scientific community fear the misuse of this therapy leading to dangerous consequences. People may try to insert the desired gene, for example, the gene f
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Identify and briefly explain the structural and functional changes that occur in the large bowel when colorectal cancer develops.
what is meant by double penetration sex?
Which of the following is a false statement regarding the method of recombination or crossing-over? A. Crossing-over takes place during prophase I of meiosis B. Recombinatio
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