Question

what is blood why is it red in colour​

Answer 1

ʜᴇʟʟᴏ❣

~~ʏᴏᴜʀ ᴀɴꜱᴡᴇʀ~~

Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream. Heme contains an iron atom which binds to oxygen; it's this molecule that transports oxygen from your lungs to other parts of the body.

ꃅꂦᖘꍟ ꀤ꓄ ꃅꍟ꒒ᖘꌗ ꌩꂦꀎ❤

Answer 2

Answer:

Blood is a mobile connective tissue composed of a fluid, the plasma and the cells, blood corpuscles. Blood is the basis of life.

Blood appears red in color due to the presence of haemoglobin, a red coloured respiratory pigment in Red blood corpuscles.

Hope it helps!