Question

what is blood ? what is blood? leaving brainly​

Answer 1

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Blood, fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products. Technically, blood is a transport liquid pumped by the heart (or an equivalent structure) to all parts of the body, after which it is returned to the heart to repeat the process.

Answer 2

Blood:

Blood is a fluid type of connective tissue consisting of a fluid matrix, plasma and formed elements.

• Blood is a red coloured fluid which is pumped by the heart.
• It is a main transport system because it transport various elements to the various parts of the body.
• It has four main components :- Red blood cells (RBC), White blood cells (WBC), Plasma and platelets.
• Blood flows through the entire circulatory system.
• Blood carries waste products and carbon dioxide. i.e It is called the carrier of useful substances.
• An average sized man contains 5-6 litres of the blood.