I’m not for sure but I believe it is A
Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Answer: can <u>mate</u> and produce <u>offspring</u>
Answer:
Sorry the first one I don't know.
The second one's answer is : Mature nerve cells, cardiac muscle cells, skeletal muscle fibers, fat cells, red blood cells, bone cells (osteocytes), and white blood cells (except lymphocytes) do not undergo division
Water molecules stick to the cell walls of plant's thin veins which helps prevent the water from falling backwards due to gravity.
