the function of the respiratory system closely overlaps with that of the

A.excretory
B.skeletal
C.endocrine
D. integumentary

I believe it is C but not sure

Hmmmm. Doesnt the respiratory rid the body of CO2 and H2O?

To determine the correct answer, let's break down the function of the respiratory system and compare it to the functions of the other systems mentioned.

The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment. It delivers oxygen to the bloodstream and removes carbon dioxide, ensuring an adequate supply of oxygen for all cells in the body.

Now, let's evaluate the other options:

A. Excretory system: The excretory system is responsible for eliminating waste products from the body, primarily through urine. Although both the respiratory system and the excretory system are involved in waste removal, their functions differ. The respiratory system eliminates waste gases (carbon dioxide) while the excretory system eliminates waste products from metabolic processes.

B. Skeletal system: The skeletal system provides support, protection, and movement for the body. While the respiratory system interacts with the skeletal system (specifically the ribcage), their functions are independent and do not closely overlap.

C. Endocrine system: The endocrine system regulates and coordinates activities by producing and releasing hormones into the bloodstream. Although certain hormones, such as those related to breathing control, can affect the respiratory system, the primary function of the endocrine system is hormone regulation rather than respiratory function.

D. Integumentary system: The integumentary system is responsible for protecting the body from the external environment and regulating body temperature. While the respiratory system interacts with the integumentary system during inhalation and exhalation, their functions are separate and distinct.

Thus, based on the evaluation, the correct answer is A. Excretory. The function of the respiratory system overlaps closely with that of the excretory system in terms of removing waste products from the body, specifically carbon dioxide.