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(a) What is the distinction among 'breathing' and 'respiration'?
(b) What part do 'ventilation' and 'gaseous exchange' play in these processes?
(a) Breathing implies the obtaining of oxygen from the environment and the release of carbondioxide. Respiration is the breakdown of organic molecules (food) to free energy which is used to drive all the living processes in an organism.
(b) Ventilation is an aspect of breathing by which an animal exchanges the air or water in contact with its respiratory surface.
Differentiation of Tissues - Root Apex New cells generated from the divisions of meristematic cells start expanding and differentiating further. Epidermis, cortex and stele a
Periodic Variations in Light-Diurnal and Seasonal We know that rotation of the earth on its axis accounts for day-to-night variations in the amount of radiations falling at a g
Q. Direct Approach to counseling? The direct approach to counselling is also called as the problem-solving approach. The counsellor collects relevant information which aims to
Q. Can you explain about Ventriculography? Cardiac ventriculography is a diagnostic test, i.e., used to define the anatomy and function of the ventricles (left and right) and r
a) List the a variety of modes of heterotrophic nutrition in plants. b) Define any two modes giving one example of each.
What is sustainable agriculture? Describe the contribution of biopesticides and biofertilisers in sustainable agriculture.
Define Plasma or serum ascorbic acid levels? The serum or plasma ascorbic acid levels are used as an index of ascorbic acid nutrition of humans. The normal serum values vary ov
Why must our cells duplicate the DNA molecules before they divide in Mitosis? Why do chromosomes condense by wrapping around the histone protiens durning the cell cycle?
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Neuston - Aquatic Ecosystem These are unattached organisms which live at the air-water interface such as floating plants and several types of animals. Some spend most of their
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