(it's science but i had to pick biology) read the following summary, which describes a body process. then, answer the question. air enters the nasal cavity. it goes into the pharynx and moves into the trachea. air enters the right and left bronchus, where it is then delivered to the lungs. after air enters the alveoli, oxygen moves through the wall of the alveoli and into the blood. then, carbon dioxide and water pass from the blood out into the air through the alveoli, also. what process is being described? a) circulation b) excretion c) immune response d) respiration

The right option is D) Respiration Respiration process is being described. Respiration is the biochemical process by which living organisms obtain and use oxygen and the release of carbon dioxide. Respiration is divided into three aspects (external respiration, internal respiration, and cellular respiration). Living organisms perform external respiration in many ways and it is based on their environments and sizes. External and internal respiration in higher animals such as humans require a system of specialized functional structures or organs.

The answer for your question is D.

segmentation=endoskeleton=backbone=coelom=tissues