Respuesta :

Answer:

Kidney is an organ

Excretory system is a system

Explanation:

Cell is the base unit

  • Many similar cells combine to form tissues
  • Tissues combine to form organs
  • Organs combine to form system
ItzTds

Answer:

  1. Organ
  2. System

Explanation:

1) The kidney is an organ.

Solutions' reason:- Kidneys are two bean-shaped organs, which are located below the rib cage of our body.

2) The excretory system is a system.

Solutions' reason:- Excretory system is a system that removes excess wastes from our body.