What Is Skeletal System and Excretory System ?

Skeletal System: The skeletal system functions as the basic framework of a body and the entire body are built around the hard framework of the Skeleton. It is the combination of all the bones and tissues associated with cartilages and joints.

Excretory System: Excretion is the process by which waste products of metabolism and other non-useful materials are eliminated from an organism

Human excretory system consists of: (i) pair of kidneys.

                                                                    (ii) pair of ureters.

                                                                    (iii) a urinary bladder.

                                                                    (iv) a urethra.