AP BIOLOGY

Detailed explanation-1: -The odour of feces is caused by the chemicals indole, skatole, hydrogen sulfide, and mercaptans, which are produced by bacterial action.

Detailed explanation-2: -In the large intestine, the chyme (partially digested food) from the small intestine is mixed with mucus and gut bacteria to form feces, digested waste material that is excreted. The large intestine acts as to concentrate and store fecal matter before it is eliminated via defecation by the anus.

Detailed explanation-3: -The large intestine’s functions are to absorb water and to store, process, and to eliminate, what is remaining after water has been reclaimed is known as feces (solid poop). This is a Physical change because it just changes the shape.

Detailed explanation-4: -The large intestine’s main job is to remove water from the undigested matter and form solid waste (poop) to be excreted.