I think the answer is A although I am not entirely positive
Myofibrils slide together.
the other options don't make sense, and the myofibrils sliding together is the mechanism the muscle uses to generate force.
The answer is A. orthopnea
Answer:
4 tips: Hydrate yourself well, short exercise bursts, breathe and relax, switch up the scenery (explore).
Explanation:
These things helped many people that I know. Hope it helps.
The answer is true.
Initially a person enjoys the physical and emotional response, as time goes on they need more of the drug just to feel "normal". They are always seeking the same feeling as the first high.