Answer: (3) Kidney
Kidneys are the chief excretory organs and are mainly concerned with the excretion of urea in the form of urine. The function of our kidney is monitored and regulated by the feedback mechanisms which involve the hypothalamus, juxtaglomerular apparatus (JGA), and the heart.
The kidneys in human beings are a part of the system for excretion.
- Cartilage is a connective tissue which provides support and flexibility to various parts of our body.
- Cartilage is found in the nose, ear, larynx but not in the kidney.
- Renal tubules and corpuscles in the kidney are formed by Cuboidal epithelium tissue.