Answer:
all of these is the answer
I would say that if she is being mean you can first try to talk it out with her (because relationships may take work sometimes and if she is really important both of you will be willing to put in the work), but if that doesn't go well and you really don't think it is going to work you should go to your other friends or family for support especially if she was a very important part of your life.
Answer: Bone marrow
Explanation:
Bone marrow can be defined as a spongy tissue inside our bones like femur, and hip bones. The bone marrow comprises of stem cells which will differentiate and divide to produce red blood cells. The role of red blood cells is to supply oxygen to all the parts of the human body. The bone marrow is also the site of calcium deposition. The bones consists of more amount of calcium then any other organ in the body. The bones comprises of calcium salts like calcium phosphate.
The blood going out from the arteries is full of oxgyen.It delievers that oxgyen to organs,therefore when it returns in the veins it contains carbon dioxide.
