Answer:
The gravitational pull of the moon as it orbits earth
Free-living flat worms = carnivores or scavengers
Have digestive cavity, mouth, pharynx
Parasitic Flatworms: = Feed on blood, tissue fluids, or pieces of cells from within a host
Fe2O3 + 6HCl -> 2FeCl3 + 3 H2O
If you count the number of each elements on both sides, they are equal. If you need me to explain this better, let me know and I would be glad to help
Answer: A) Z
Explanation: I JUST TOOK THE TEST ON STUDY ISLAND