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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.
Class Gastropoda Body asymmetrical, depicts torsion or its effects; shell coiled in most, well developed head with radula, large flat foot, gills one or two or with pulmonary
Q. Compared to mammals do birds absorb more or less water in their digestive system? Why is this phenomenon an adaptation to flight? Bird feces are more liquid than mammal a fe
Sucrose is commonly used to preserve fruits why not glucose? Ans) Glucose is reactive due to its open-chain form having an aldehyde group.
Proteins of Plant Origin - Seed Proteins Seed Proteins: Although a large number of plants produce seeds having protein contents in excess of 15%, only a few are utilized for fo
Healthy human female X is 25 years old and not pregnant. During the postovulatory phase of X's menstrual cycle, A. there are high blood plasma levels of LH and FSH.
MITOCHONDRIA It is the power house of the cell because they are the major centers of release of energy in the aerobic respiration. Mitochondria and chloroplast both are a
What is Class Gastropoda in animal kingdom? Snails and slugs are referred to as gastropods because of their characteristic body plan. "Gastro" is derived from the Greek word fo
State the changes in society which could contribute to a falling death rate. The changes in society which could contribute to a falling death rate are: (i) improvements in
Define Glycogenolysis Glycogenolysis : degradation of glycogen.
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