Which of the following processes is NOT a physical or chemical change? a. crushing
b. weighing
c. melting
d. passing electric current

Isolated volcanic peaks on the ocean floor are

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?