I don’t think you’re looking for a part but I believe you’re looking for blood, more specifically the red blood cells
Answer: A
I know this because I just took a test on this and I passed with a 99% on my SAT
Answer: D
Explanation:
It leads to a healthier heart, coming from the name cardio - respiratory (cardio means heart)
Hope this helps! :)
Health education will help an individual to further public education by spreading the importance of health and knowledge about it among public. Health education and spreading its knowledge in public and making public aware of their health can only be done if a person himself is fully aware about the concept of health.
hope it helps...!!!