The answer to this question would be: vertebrae
In vertebrae fracture, traction is important to assure immobilization of the vertebrae. Movement can cause the fragment of bone in the fracture damaging the neural tissue in the vertebrae.
To ensure no movement in the neck, metal tongs can be put on the skull. The tongs will help fixate the skull with the shoulder.
The most common cause of anemia is iron deficiency.
It is the last choice because their similar bone structures suggest they once had a common ancestor, which is why they are all mammals.
Usually enzyme inhibitors slow down the enzymes activity, so in this case, I would put D.
I know this sounds silly but I just took the test they were made in the stars or B
