Human development is a complex process. where does human development occur?
a. in a structure of the female urinary system
b. in a structure of the female digestive system
c. in a structure of the female circulatory system
d. in a structure of the female reproductive system

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.