electronic beams
hope this help
The answer is B, or They can survive in changing salinity.
They study the human body
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.
Simple, we are learning about new things every day we as a human race learn something new about our world
