What do all of the organ systems in a human form?
O the organism
O the cells
O the tissue
O the organs

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods