The excretory system removes excess water salts & _ a _ _ _ _ - _ i _ _ _ _ _

Where can a dna be found in a prokaryotic cell

Which direction does the energy flow in this energy pyramid ?

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?