The is the muscular middle layer of the heart.

There are six elements that make up most of the human body. which of the following is not one of these six elements?

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit