Question

define alveoli and nephron

Answer 1

Alveoli --- any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange. Nephron ---- each of the functional units in the kidney, consisting of a glomerulus and its associated tubule, through which the glomerular filtrate passes before emerging as urine.

Answer 2

alveoli :- it is functional unit of lung , they are  many tiny air sacs of the lungs which allow for rapid gaseous exchange.

nephron:- it is  functional units of the kidney, consisting of a glomerulus and its associated tubule, through which the glomerular filtrate passes before emerging as urine.