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Ammonotelism - Excretion
Ammonia diffuses through cell membranes extremely fast because of its high water solubility and small molecular size. Hence, it can be excreted as such only when there is ample water for its rapid removal from the body in the form of a dilute solution. Prompt excretion of ammonia therefore, occurs in aquatic animals, both freshwater and marine, in which there are constant water fluxes occurring between the environment and the body.
Freshwater and marine invertebrates and fishes, larval and permanently aquatic amphibians excrete a major portion of their waste nitrogen as ammonia and thus called ammonotelic or ammoniotelic. The route of ammonia diffusion in these animals is skin, gills or kidneys.
Historically what were the two main evolutionary theories? The two major evolutionary theories were darwinism and lamarckism.
Given the cell described in Figure 7.7 with a=100mM, Pk=1.0, and PNa=0.04, at steady state, plot the relationship between Jp and V.
Q. How Implant design and surface affect osseointegration? Implant design Most conductive design for osseointegration is root form. They can be threaded, hydroxyapatite co
Toxic agents present in food which interfere with thyroxine synthesis lead to the development of: 1. toxic goitre 2. cretinism 3. simple goitre 4. thyrotoxicosis si
Metestrus - Estrous cycle This occurs shortly after ovulation and is intermediate between estrus and diestrus. The period lasts for 10 to 14 hours and mating is usually not perm
Explain Rickets Rickets:- A condition in children due to vitamin D deficiency.
What does Liquescence digestive enzyme do? It helps to normalize the secretion of digestive juices and enzymes in the gastrointestinal tract
What is the best microscope to get a detailed view of the parts inside of a preserved plant cell? Transmission electron microscope Scanning electron microscope Compound li
Protein denaturizing can be source by temperature variation, pH change, and changes in the concentration of surrounding solutes and by other processes. Most proteins are denatured
Rh-factor It is one of the factor associated with blood. In addition to ‘A', ‘B', ‘AB' and ‘O' groups, Rh factor test is also done in the blood. People having Rh factor a
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