The protein inside (a) red blood cells that carries oxygen to cells and carbon dioxide to the lungs is (b) hemoglobin. Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen.
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
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Answer:
C
Explanation:
Arrow 1 represents the promoter for RNA II.
Answer:
el nucleo ... las celulas tienen un nucleo ñas cuales las dirige por asi decirlo
