Yes.
Unless there's bits of plastic on the hat that may block the cow's digestive system on the way down and out, it shouldn't hurt the cow.
Ask yourself this question: Why do you need a digestive system? Why does your mother, your father, your best friend, your pet, anyone need a digestive system?The answer to that question is because we need to eat in order to live. Without the ability to eat, we do not live. This is the exact same thing for a cow. If a cow cannot eat or cannot consume food, it cannot live.Think of it this way if you are still questioning my answer: there is such a thing as starving to death.
a. an earthworm
Oysters have a two way digestive system. This means that they only have on opening for both food to go in and to come out.
They have complete digestive system.
Planarians are classified underneath the flatworm phyla, and flatworms have two way digestive systems.
A plant obtains its nourishment through photosynthesis. Plants are producers, so they have no need to have a digestive system.
No bats have a one way digestive system. Food goes in the mouth, is digested, and comes out the other end. In two way digestive systems food is taken in and waste is excreted through the same opening.
I am not 100 % sure of this but I believe the digestive system goes from your mouth all the way to your colon so everything in between is a part of the digestive system.
One way. An earth worm has both a mouth and anus.
Yes, most mammals have 1 way digive systems.
Yes, the respiratory system provides oxygen to the digestive system.