The right lung has three lobes :) it’s slightly larger than the left one as well so
The armor protects the skeletal system and has joints. so you could put armor is to skeleton as shell to crab.
The bladder is a muscular organ that stores urine.
The sac that regulates the temperature of testis is the scrotum.
The urethra extends through penis and is the tube that brings urine and semen.
The fluid containing sperms is called semen.
