The inner portion of the brain is mostly composed of white matter while,the outer portion of the brain, is composed of gray matter.
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Answer:
some of the most common injuries that happen in school are bruises, sprains, strains, joint injuries and nose bleeds
Diffusion.
diffusion is passive, and the oxygen and carbon dioxide move to the area of lower concentration
Bones that function primarily to protect viscera are skull bones, rib cage, shoulder girdle and pelvic girdle.
Ur answer is d bc that’s makes it uncertain and difficult to accomplish
