The evolutionary adaptation of the digestive tract of roundworms is the PSEUDOCOELOM.
The pseudocoelom is a partial fluid-filled cavity inside the roundworm. Its presence is a factor in the shape of the roundworm.
You could do a short story about a man who leaves his home full of energy and ready to go ( like oxinated blood leaving the hart) and the farther he walks away from is home the less energy he has. when he don with his walk he goes home to rest ( deoxinated blood going back to the hart) when he gets home he goes to his home he goes to the refrigerator and gets some food ( deoxinated blood goes to lungs) and the goes to bed to do the same thing later
Answer:
Because of the difference in the genetic makeup of those with the beak shape, their population evolves to a higher level of adaptation. I think it should be fewer mutated.
Water can take 8-9 days
rubbing alcohol can take less then 12 hours