Question

33. A wildlife biologist is investigating a sudden increase in death rate among several bird species. She has not been able to determine what disease or toxin is causing the deaths, but she has found that many of the sick birds are exhibiting a shortage of dissolved oxygen and a buildup of dissolved carbon dioxide in their cells.



Which of these body systems is most likely functioning improperly?

(1 point)
Responses

respiratory
respiratory

reproductive
reproductive

muscular
muscular

excretory

Answer 1

The body system most likely functioning improperly in this scenario is the **respiratory** system. The symptoms of a shortage of dissolved oxygen and a buildup of dissolved carbon dioxide in the cells indicate that the birds are having difficulties with gas exchange, which is primarily the function of the respiratory system.