The correct answer would be D. DNA evidence showing it was more closely related to mammals than to other vertebrates <span />
What causes hemolytic disease of the newborn (HDN)? HDN most frequently occurs when an Rh negative mother has a baby with an Rh positive father. When the baby's Rh factor is positive, like the father's, problems can develop if the baby's red blood cells cross to the Rh negative mother.
Answer:
heron and perch or fox they are
