Due to less food energy because biotic are that primary source
Answer:
D. Traveling to the heart
Explanation:
The arteries carry oxygen and nutrients away from your heart, to your body's tissues. The veins take deoxygenated blood from the tissues and back to the heart.
Answer:
type AB
Explanation:
because you can write type A blood with two big I with A antigens or a big I and a small i