Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
Answer:
Explanation:
This statement is true because they are more stronger so they can put more force into the ball passing it more farther with more speed.
You should use your fingertips.
Sometimes minor consequences<span> are the catalyst for </span>someone<span> to address his or her issues with a substance problem. Others slip deeper into a life </span>addiction<span>, and do not seek help until they hit rock bottom. </span>
Answer:
I got you :)
Explanation:
People refusing to wear masks and not social distancing spreads virus particles much quicker thank if the precautions we taken. Coronavirus is very serious and should not be taken lightly.
