Answer:
Dorsal lol, its contracts and pumps blood to the aortic arches.
A law can be repeated every time while a theory can not a law has more facts and statistics supporting its results while a theory has not been proven and really just cant be trusted as much as a law.
Answer:
Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.
Explanation:
False the fast it moves the stronger it would be to pick up more sediment
Answer:YES
Explanation:A PDA is a type of congenital heart defect. A congenital heart defect is any type of heart problem that's present at birth. If your baby has a PDA but an otherwise normal heart, the PDA may shrink and go away. Some children need treatment to close their PDAs.
