Any cell-metabolism related waste product can be loosely classified as excreta. But undigested food,which is a part of faecal matter, should not be called as excreta. However, faecal matter contains a very small amount of salts of heavy metals like Mercury,Lead etc. which are produced by cell metabolism. So faecal matter can loosely be classified as excreta.
egestion is the removal of undigested food from the gut while excretion is the process of eliminating waste products of the metabolism and other other non-useful material.
Bile
Pooping or Defecating is not excretion.Excretion is the removal of waste products of metabolism from the body. This is done by the excretory organs. (Skin, Lungs, Kidneys)Defecation (or egestion) is the removal of undigested food from the gut, it is not regarded as excretion because the material taken into the gut through mouths is not made by the body its and has not been absorbed into the cels or taken part in metabolism.The only excretory product in faeces is bile pigments.
Feaces
Egestion is the discharge or expulsion of undigested material (food) from a cell in case of unicellular organisms, and from the digestive tract via the anus in case of multicellular organisms. It should not be confused with excretion, which is getting rid of waste formed from the chemical reaction of the body, such as in urine, sweat. Egestion:- Removal of undigested food or faeces from the gut. In most animals egestion takes place via the anus, although the invertebrate flatworms must use the mouth because their gut has no exit. Egestion refers solely to indigestible matter which is never absorbed into the cells - it should not be confused with excretion of the waste products of metabolism. Excretion is the transfer of substances out of a living organism into its environment. At its simplest, for single-cell forms of life, this involves extrusion across the cell membrane of the unwanted or potentially toxic by-products of respiration and metabolism. This is also what is happening continually in the individual cells of the animal body, but from their immediate environment substances must move into the blood to be carried away to the site of their ultimate disposal. In the animal body there is also another type of excretion: expulsion of the residue of substances which have not been absorbed into the body proper from the gut (which can be considered a tunnel through the body of the external world).
Elimination is the removal of undigested food (solid waste) from the body.
Undigested food
Water in the undigested food will not be absorbed and the undigested food will be watery
It can be called that in very broad terms. Excretion involves sweat and urination as well.
tomato seeds and its thin upper layer
undigested food will either go to your appendix or it will go out the drain.What_happensto_undigestive_food_after_digestion
Bacteria disintegrate the undigested food further.