Answer:
Substance B is a group of hydroxide ions.
Explanation:
Go to the Prenatal Testing page for more details. If one parent has sickle cell trait (HbAS) and the other has sickle cell anaemia (HbSS) there is a one in two(50%) chance that any given child will get sickle cell trait and a one in two chance that any given child will get sickle cell anaemia.
One commonality is the ability to grow and reproduce through the production of new cells; cell division.
Answer:
endothermic reaction
Explanation:
This means it cannot occur without energy (from the Sun).