Who ever replise first i´ll give them brainlest

Brainliest what are fingernails made of?

Which finger should not be used when measuring heart rate?

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