Give reason .
1. Transportation of substances in living organisms.
2. The heart gives away impure blood through an artery.
3 arteries have thick elastic walls.
4. We feel cool in summers while sweating.
5, if plants do not get enough water they droop and wilt.
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1. substances like food, oxygen etc needs to be transported around the body as all organs require certain substances to do a certain task like .uscles rquire food and oxygen to use energy and not only muscles require these but all organs, tissues, cells, etc require food nad oxygen.
2. the impure pumped away from the heart so that is goes to kidney/lung for purification/oxidation and then it comes again and then pumped to the rest of the body.
3. arteries carry oxygenated blood from the heart to the different body parts. Blood emerges from the heart under high pressure.
4. the sweat makes your skin feel cooler when its wet. After a relatively short amount of time it evaporates from your skin.
5. the water keeps plants fresh and turgid when a plant does not get enough water it wilts and droops due to loss of turgidity