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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.
can anyone tell me at least three adaptation that help humans have differential survivability, and three adaptations that help humans have differential fecundity? any help
Explain Residual Volume and Functional Residual Capacity Residual Volume (RV): It is the volume of air that remains in the lungs after maximal expiration. The average volume
researched method in socieal science with sample sarvay
Botany: In the Bronze and the Iron Ages, agriculture became the principal mode of production of man in all lands. It is, thus, not surprising that in India, botany and elementa
Darwin and Natural Selection: The English naturalist Charles Darwin (1809-1882) explained how biological evolution took place, in his remarkable "The Origin of Species" in
Define the both macronutrientand micronutrient. An element necessary in large amounts (usually > 50 mg/kg in the plant) for the growth of plant is called a macronutrient and in
How to make an overflow can and catch bucket These are useful for the study of Archimedes' principle, which controls floating and sinking. To make an overflow can secure a tin
how do i draw mario at two different resolutions: 32 by 32 pixels, and 8 by 8 pixels.
The Ayurvedic System of Medicine: Punarvasu Atreya (about 6th century B.C.) taught medicine at Taxila. Each of his disciples such as Bhela, Jatukarna, Harita, Ksarapani, Par
INTRODUCTION : In this unit, we shall discuss the need and the method for reporting an accident. We shall explain the choice of locating the first aid box and state its contents.
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