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Q. What are the organs that form the human respiratory system?
The organs that are part of the human respiratory system can be divided into three groups: lungs, respiratory muscles and airway.
The lungs are the left and the right lungs made of alveoli where gas exchange (exit of carbon dioxide and entrance of oxygen) takes place the lungs are covered by the pleura a serious membrane. The airway comprehends the nose, the larynx, the pharynx (including the vocal cords), the trachea, the bronchi and the bronchioles. The muscles upon which the breathing process depends are mainly the intercostal and the diaphragm muscles (muscles between the ribs).
Nature of Metabolites in Sieve Tubes The phloem sap contains three major classes of organic compounds - organic acids, amino acids and sucrose besides some cations, anions and
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why is it necessary to classify living organisms ? what are the advantages of classifying organisms?
What is tubal pregnancy? Many times fecundation takes place in the Fallopian tubes. Usually the newly formed zygote is taken to the uterus where nidation and the embryonic deve
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Q. Is the embryonic development in earthworms indirect or direct? The embryonic development is direct because in earthworms there is no larval stage. Q. What is the name of
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