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Heart

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       About Human Heart: A well developed specialized system to transport nutrients,gases and hormones within the body.' This system is known as circulatory system,namely blood , blood vessels and heart.                   Blood is a fluid connective tissue. Blood circulates and transport essential substances such as oxygen and nutrients to the cells all over the body. It composed of plasma and blood cells.There are three type of blood cells or corpuscles. They are red blood cells(RBCs) or erythrocytes,white blood cells (WBCs)or leukocytes, and blood platelets or thrombocytes. Diagram of Heart. The  heart  is a  muscular   organ  in most animals, which pumps  blood  through the  blood vessels  of the  circulatory system . [1]  Blood provides the body with  oxygen  and  nutrients , as well as assisting in the removal of  metabol...
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mangalyaan-2

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Mangalyaan-2 Mars Orbiter Mission 2  ( MOM 2 ), also called  Mangalyaan-2  ("Mars-craft", from  Sanskrit :  मंगल   mangal , "Mars" and यान  yān , "craft, vehicle"), is  India 's second interplanetary mission planned for launch to  Mars  by the  Indian Space Research Organisation  (ISRO). As per some reports emerged, the mission was to be an orbiter to Mars proposed for 2024. [5]  However, in a recorded interview in October 2019,  VSSC  director has indicated the inclusion of a lander and rover. [1]  The orbiter will use  aerobraking  to lower its initial  apoapsis  and enter into an orbit more suitable for observations. [6] [7] [8] Mars Orbiter Mission 2  ( MOM 2 ), also called  Mangalyaan-2  ("Mars-craft", from  Sanskrit :  मंगल   mangal , "Mars" and यान  yān , "craft, vehicle"), is  India 's second interplanetary mission planned for launch to...
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