A number of babies are born with an opening between the right and left atria. These newborn babies are discovered to have a larger number of red blood cells. Why does this happen?
- AMore blood is needed because it is pumped faster.
- BNewly born babies’ haemoglobin has a higher affinity for oxygen.
- CNewly born babies’ haemoglobin molecules only have one haem group.
- DThere is less oxygen available to the newly born baby.