Molecules that are eaten but not absorbed by the animal leave the animal's body in and are

I believe there are blanks in this question:

Molecules that are eaten but not absorbed by the animal leave the animal's body in __ and are __

For the first blank, the answer is "feces".

While for the second blank, the answer is "not assimilated".

Answer;

Molecules that are eaten up but not absorbed by the animal leave the animal's body in the feces and are not assimilated.

Explanation;

Through the use of specialized chemicals, the body's digestive process continuously breaks food down into smaller and smaller pieces until they can be absorbed into the body metabolism. However, the undigested materials, such as water, fiber and cellulose, are extracted from the body in feces.