Differentiate between egestion and excretion

Egestion

Excretion

1. Egestion is the process of removal/ expulsion of undigested food from the body.
2. It t akes place through cell openings in unicellular organismsr  o through the anus in multicellular organisms.
3. It is seen only in animals.

1. Excretion is the process of removal of metabolic wastes from the body.
2. Different organisms have different excretory organs . For example, lungs, kidney and skin serve the purpose in humans.
3. It is seen in both plants and animals.