Question

How is excretion different from osmoregulation?

Answer 1

By excretion we mean it is the process by which organisms expel metabolic waste products and other toxic substances from their body. It is an important life process which is seen in all living organisms. Whereas osmoregulation is a process which regulates the osmotic pressure of fluids and electrolyte balance in the organisms.

Complete answer:

Excretion	Osmoregulation
It is the process of removing harmful substances and also the waste products from the body.	It is the process of maintaining a constant pressure within the body by maintaining the water balance.
It is a type of elimination.	It is a method of balancing and uptake of water.
It involves various events like exhalation, defecation and also urination.	It involves the events of endosmosis and exosmosis in order to maintain the balance.
Organs involved are kidneys as well as respiratory and digestive systems like lungs and rectum.	Organ involved is the kidney.
Kidneys filter the blood, urine is the filtrate that eliminates waste from the body via the ureter into the bladder.	Kidneys regulate the osmotic pressure of a mammal’s blood through extensive filtration and also purification

Note:
There are two main types of osmoregulation which are osmoconformers and osmoregulators. Excretory products are created as a byproduct of metabolic as well as non-metabolic activities. The waste products animals generate can be classified as either metabolic wastes or non-metabolic wastes. Examples of metabolic wastes are gases, liquids and solids. Non-metabolic wastes are formed when a substance is no longer usable or digestible by an organism.