Answer:
Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.
Explanation:
Answer:
Proteins are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. There are 20 different types of amino acids that can be combined to make a protein.
Explanation:
welp if answered ima jus take these points thx
Answer:
B. Starting as stem cells, a
gene cuts on in each which leads to them changing into muscle cells, fat cells, nerve cells, and red blood
cells each having different jobs
Explanation:
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They dig or "mine" for it. just like they do coal
