Different between the basic structural and functional units of the kidney and the lungs based on the following points: - a)name , b) structure , c) function

A) lungs : is where the exchange of gas occure .

B) pair of spongy ,air filled organs located either side of the chest ; it has 2 tubes called bronchi at the end of them there is tiny sacs called alveoli in which where exchange occure .

C) it take the blood from the right ventrical to echange the carbon dioxied to oxygen inside the capillaries of the alveoli then pump it to the left  atrium

A) kidney:is one of pair organs that remove wastes from the blood.

B)Surrounding each kidney is a tough, fibrous renal capsule and, beyond that, two layers of fat that serve as protection. ... Each consists of an outer renal cortex and an inner renal medulla. Flowing between these sections are nephrons.then the glomerulus.

C) The kidneys are two bean-shaped organs that extract waste from blood, balance body fluids, form urine, and aid in other important functions of the body.

answer; i believe its (ovulation);

when it is at an intermediate population density