<span>
</span>Most cells of the body have self markers on the surface of their cell called the major histocompatibility complex (MHC). The MHC allows cells of the immune system to recognize the cell as part of our self.<span>system to recognize the cell as part of ourself.</span>
Answer:
The Circulatory System
Explanation:
When blood is rich in carbon dioxide it leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. (All of which have to do with the circulatory system)
The statement that when consumed together, grains and legumes are good complementing protein sources is true.<span>
</span><span>Legumes are plants that include beans, lentils, peas and peanuts, while grains are </span><span>wheat, oats, corn, rice..</span><span>
They are less expensive than meat, poultry and fish.
</span>When eaten together provide a complete protein essential for health.
Bc you’re supposed to poop everyday no matter what you eat and helps make certain digestions come out