Which of the following allows groups of skeletal muscle cells to perform coordinated contractions?

9. wind power creates pollution. water air soil noise

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.