Each nucleotide only pairs with one nucleotide
Answer:
red blood cells and white blood cells
Explanation:
It is D & E. Uranus is Helium & Hydrogen, And it has dark rings
Answer:
it is might be wrong....
Explanation:
Third-trimester ultrasounds can examine the placenta and the position of the fetus. Sometimes an ultrasound is part of a test called a biophysical profile (BPP) to see whether the fetus is getting enough oxygen. The BPP examines the baby's breathing, movement, amount of amniotic fluid, tone, and heart rate response.
