Ballistics is the science of the motion of flight and impact of a or ?

Name 3 type of doctors that use medical furniture (chairs), and diagnostic equipment as well as exam tables.

Esther works at a large hospital where she plans food service programs she monitors an records information regarding patients diets and intake and is devoloping a new meal plan that addresses several different dietary needs for many types of patients esther enjoys her work as she feelss that she is patients develop healthier habits

Which is the lipid molecule that controls what types of molecules can pass though?