A reason could be the bodies ability to process the water based vitamin as well as the person's diet. many things have b12 in it but choosing to cut something out, like meat, could cause a deficiency
Answer:
The cornea
Explanation:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Answer:
A
Explanation:
The end of the germinal period is marked by the implantation of the blastocyst in the wall of the uterus.
