Some chemical reaction take place inside the living system.some of the product given out harmful if allowed to accumulate’:these are know as excretory product.example the excretory product in human beings based on the excretory oragan involved in each product, where it is produced and it’s effect to human body.

Some chemical reaction take place inside the living system.some of the product given out harmful if allowed to accumulate’:these are know as excretory product.example the excretory product in human beings based on the excretory oragan involved in each product, where it is produced and it’s effect to human body.