What are the main organs of the cns? brain spinal cord peripheral nerves pituitary gland

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Witch theory suggests all living things are made up of cell or cells

Development has provided electrically for less money but what may be considered a cause of nuclear power