Biology, asked by Anonymous, 1 year ago

what is blood ?
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Answers

Answered by ishanpandey007
2
Blood is a body fluid in human beings and other other animals which is responsible for the transportation of various nutrients, oxygen and hormones also it transports metabolic waste products away from those same cells. Blood accounts for 7% of human body weight.
The blood cells are mainly red blood cells(also called RBCs or erythrocytes),  white blood cells (also called WBCs or leukocytes) and platelets (also called thrombocytes). 
Red blood cells transports oxygen carbondioxide and nutrients because of their special disk shape which help them to transport more at once.
White blood cells protects us from foreign particles and disease. It forms the immune system of our body.
Platelets are important in the clotting of blood.
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Answered by ziniyakhan
4
Blood is a liquid in humans and many animals expect insects. Blood is pushed through the organism by the heart. snd brings nutrients and oxygen to our tissues . It also takes away waste and carbon dioxide from tissues .
Blood of vertebrates is made up of blood plasma and various cells :- Red blood cells , white blood cells and platelets .
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