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In a unicellular organism, the interior region of the organism is no longer in contact with the external environment. Thus simple processes of diffusion, phagocytosis, exocytosis and contact with sea water helped in exchanging the necessary molecules and nutrients. But a further increase in size and complexity of the organism lead to concentration of the pool of cytoplasm. The fluid in-between the cells was known as interstitialfluids.
These fluids, due to constant exchange of molecules between the various cells lead to changes in the internal environment which influenced the functioning of the cell. Physiology, we learnt earlier, is concerned with such basic activities as reproduction, growth, metabolism, excitation and contraction as they are carried out within the fine structure - the cells, tissues, organs and organ systems of the body. The various body systems of our body are enumerated next.
For moderately volatile liquid wastes : Spillage of moderately volatile liquids could be absorbed on sand, shovelled into bucket(s) and transported to a safe open area for evapora
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Why does marble rarely contain fossils? This is due to of the way that it is formed. When you have a rock that is formed bymetamorphosis then it has been created by heat and pres
The Survey Committee Recommendations The Survey Committee, consisting of the following three members, surveyed Chemistry1 Physics/Botany/Zoology laboratory for identifying unse
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What is the only usual mineral to be strongly magnetic other than magnetite: Pyrrhotite
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How to make a receiver for vacuum experiments Secure a large jar with an air-tight screw cap, like as a fruit jar. Drill a hole by the top and have a short metal tube soldered
A series of experiments were carried out using various sizes of crushed catalyst in order to determine the importance of pore diffusion on the observed rate. a) do the data
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