Two things that biomedical has invented or innvated

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Is a logical series of steps

Not a  mixture of two common elements that can be separated by physical means.

Heating it up with cause a quicker reaction time