What role does the esophagus play in the digestion of food? Text to speech
A:A. The esophagus breaks up pieces of food through chemical reactions.
B:B. The esophagus pushes food into the throat.
C:C. The esophagus has muscles that push food into the stomach.
D:D. The esophagus produces digestive juices to break down food.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.