Wich word means the history of life in the geology past as indicated by the imprints or remains of living things

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?

Amines amides and amino acids are categories of

Pulmonary arteries carry highly oxygenated blood. true or false?