Question

what is blood ? what function does it perform​

Answer 1

Answer:

Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets. Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs.

Blood has many different functions, including:

transporting oxygen and nutrients to the lungs and tissues.

forming blood clots to prevent excess blood loss.

carrying cells and antibodies that fight infection.

bringing waste products to the kidneys and liver, which filter and clean the blood.

regulating body temperature.

Explanation:

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Answer 2

$\colorbox{pink}{Red Blood Cells :-}$

➪ Red blood cells, also referred to as red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues—via blood flow through the circulatory system.

$\colorbox{pink}{Functions of RBC :-}$

➪ Red blood cells carry oxygen from our lungs to the rest of our bodies. Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.