Question

what is haemoglobin?​

Answer 1

Answer:

Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest; for gases, the reference is air at room temperature

Explanation:

Aree yaar has toh saare hi rahe hai pata nhi kisne kya joke mara ...

Maybe jo gir rahi hai

2nd line the 2nd one girl !!

Answer 2

• Hemoglobin, usually written hemoglobin, is an iron-containing protein found in the blood of many animals, especially in vertebrates' red blood cells (erythrocytes), that carries oxygen to the tissues.
• Hemoglobin and oxygen create an unstable reversible connection. It is brilliant red in the oxygenated state and purple blue in the reduced state.
• When red blood cells die, hemoglobin is broken down: iron is salvaged, transported to the bone marrow by proteins called transferrins, and used in the production of new red blood cells.
• the rest of the hemoglobin becomes bilirubin, a chemical excreted in the bile and responsible for the yellow-brown colour of faces.