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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.
how is there a chemical change
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Name 2 places on earth where continental glaciers exist: Antarctica And Greenland are the two place where continental glaciers exist:
characteristics ot coelenterata
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Archaeological Evidence: The study of human antiquities, especially of prehistoric period is known as archaeology. The biological and cultural evolution of man proceeded side
Answer the following questions. Show all work. 1 . Carbohydrates = _____ kcals/g Proteins = _____ kcals/g Fats= _____ kcals/g Alcohol= _____ kcals/g Nitrog
From the start of this course, we have emphasized the importance of research in shaping our understanding of human behavior and mental process. Several major studies and social psy
To show that expired air contains carbon dioxide The two flasks are linked so that when you breathe by the T piece, all the air bubbles by the lime water in the flasks. One tub
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