1.water going over a waterfall FORMS OF ENERGY 2.stoplight with red showing
3.batteries (still in package)
4.TV with your favorite program on
5.cutting paper with scissors

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

Ascientific idea becomes valid when it is what?

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what