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How is gas exchange done in flatworms?
Platyhelminthes exchange gases exclusively by diffusion by their body surface. This is only possible because all cells are localized relatively near to the exterior as gases diffuse cell by cell (the flat shape of these worms is a feature that permits this type of respiration).
What are pleura, pericardium and peritoneum? Pleura are the membrane that hides the lungs and the inner wall of the chest; pericardium is the membrane that hides the heart; per
formulation of RDA
Cell theory is a theory that asserts that the cell is the ingredient unit of the living beings. Before the discovery of the cell, it was not examined that the living beings were
Types of Biogeochemical Cycles There are two basic types of biogeochemical cycles, gaseous and sedimentary. In the gaseous type of biogeochemical cycle there is a prominent ga
Q. What are the few examples of the energetic function of organic molecules? Since they are complex molecules, organic molecules store large amount of energy, presenting many c
Define Solvent Chemical Potentials from Phase Equilibria? Previously explained how we can evaluate the activity coefficient γ m,B of a nonelectrolyte solute of a binary soluti
what is the branches of applied?
Q. Extractive use of biodiversity? This includes direct use such as harvesting of wild plant species for use as food, fuel, fodder, fibre, shelter or medicine and hunting anima
Q. Concerning their size and basic morphology how and why do the male and the female gametes differentiate from each other? The female gametes are big cells full of vitellus (n
Embryonic Induction and Cell Determination The cell determination or fate of embryonic cells is regulated through factors which may reside within the embryonic cells or by the
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