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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.
Will we ever go beyond The Milky Way?
The simply-supported uniform beam shown in the ?gure below supports a mass m at a distance aL from the left support. Assume that the beam is relatively mass-less compared to the ma
Hey, I have to ask an expert questions for an assignment and I was wondering since you have a degree in botany how would a multi vitamin affect a plant?
What is the common name for the test that provides the hardness of the material by the size of an indent left in it by a standard steel ball? The Brinell Test
1000 words
what is a season
State about the carbonaceous and nitrogeneous materials The basic ingredients of these are either animal or human excreta containing microorganisms which decompose carbonaceous
short notes of cholestrol
Explain physical barrier for External Defence Mechanism - Skin It provides nice protective covering to the body. The outer layer- horny layer - contains dead keratinized cells
Severe Bleeding In case of severe bleeding, use the following steps: (1) Control bleeding by the following means: (a) Apply direct pressure on the wound for 5-15 minute
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