Question

pls help me find out the answer please


pls answer those who know​

Answer 1

Answer:

Hemoglobin, or haemoglobin + -o- + globulin, abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of almost all vertebrates as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the lungs or gills to the rest of the body. 

Answer 2

a) 7

b) 3

c) 3

hey this all are right answer