D neither a nor b is right
The correct answer is B, high rates of vaccination
One is fat soluble vitamins!
When you eat foods that contain fat-soluble vitamins, the vitamins are stored in the fat tissues in your body and in your liver. They wait around in your body fat until your body needs them.
The other is water soluble vitamins!
When you eat foods that have water-soluble vitamins, the vitamins don't get stored as much in your body. Instead, they travel through your bloodstream. Whatever doesn't go through your blood stream comes out as urine.
Good luck love!
Answer:
Babies first develop muscles in the head and neck.
Explanation:
Babies develop in a cephalocaudal direction. This means that they develop from the head downward. First the head and neck, then trunk, then extremities.
Life expectancy has increased steadily during the past six thousand years by 1.4%
