Which of the following is NOT a function of the integumentary system? A. protection from foreign invaders
B. thermoregulation through sweat
C. Provides the sense of touch
D. Allows oxygen to flow through the bloodstream
I will pick the brainiest answer! Thanks!

D. Allows oxygen to flow through the bloodstream

Explanation:

The integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands meaning it has no role in transportation of oxygen.

However, the circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones,

what are the options

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.