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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.
1.) Imagine that you are a particle inside an ice cube. You were placed into a glass of lemonade to cool it down. The lemonade has now been drunk and you have been left in the glas
Genetic Engineering: The modem biotechnology revolution is based on the understanding and manipulation of the structure of DNA. DNA is a complex organic molecule that directs
Packaging and storage of oil Rancidity can cause the oil to deteriorate and develop off-flavors during storage. Using clean, dry containers, which exclude light and heat, and p
Some Physical Features of the Atmosphere: i) The atmosphere is a mixture of gases. It is made up of 78.08% nitrogen; 21% oxygen by volume. There is only 0.03% of carbon dioxi
Precautionary Measures Against Ionising Radiations The following guidelines are suggested for experiments using low activity radioactive materials: (1) Avoid skin contact
1. Contrast how a functionalist verses a conflict theorist would view the impact and effects of the media on children differently? Be sure to articulate the point of view of e
Explain in detail about the Viruses Viruses are the ultramicroscopic parasites which always require a living h ost for their multiplication. Since they are much smaller than ba
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Why does gravity effect people?
#question.find the specific gravity of blood lymph and water.?
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