Answer:It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide
Explanation:
Answer: Progesterone
Explanation:
Progesterone continues to be produce until the placenta takes over.
Answer:
they're very common and wear protection to prevent STDs
Incorporating cardio, upper body exercises, lower body exercises, and core exercises. Four is all I can come up with.
Where are the options to answer