Birth defects can be caused wither by internal genetic factors or external factors like drugs, radiation, smoking,...
Dana, who is concerned about the possibility that her baby will have defects, may do the following tests: screening test, that will show if she might have child with birth defect and diagnostic test like amniocentesis (analyzing small amount of amniotic fluid from the area surrounding the baby) which is more than 90% correct.
Answer:
Get your friends to start, then see if they will get their friends and continue like that.
Explanation:
Answer:
High higher and high as the sky
C.increase in children with unmarried mothers
