As they contain, green pigement they can perform "Photosynthesis" and obtains energy from that process
Hope this helps!
The circulatory system works with the digestive system. Once the food is digested, the circulatory systems absorb and uses the nutrients in the food. If the digestive system were to break down, the circulatory will not have the nutrients it needs to sufficiently run the body.
Answer:
fe3o4+4h2 - 3fe + 4h2o
therefore coefficient is 4
