The immune system<span> is made up of a network of cells, tissues, and organs that work together to protect the body. One of the important cells involved are white blood cells, also called leukocytes, which come in two basic types that combine to seek out and destroy disease-causing organisms or substances.</span>
The gravity from the moon and some from the sun brings the tides up, because the moon's gravitational force is strong enough to pull some water up.
1 is b or 1/4 (I'd recommend checking a punnet square too)
Calcium is few of the main sources for healthy bones, teeth, and muscles.
