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.
The answer is D for e2020!!!(inscreasing conflict...) im taking the test rn im positive on this answer guys
B. I believe if not B. that it has to be D.
Health-related fitness is mainly to benefit your body and fight diseases such as diabetes and performance-related fitness is more of an aesthetic or look.
Here are some reason to prepare yourself for an SAT. Firstly, start early. We know that ideally you’ll like all the time in the world to prepare for a test. Secondly, set a goal. Have everything planned out so your organized. Thirdly, get a good night sleep. Getting the right amount of sleep will help you think and keep you energized for when you need to take the test. Some other reasons that involve this question are shoring up your weaknesses. If you already have strengths such as the written portion then it might make sense to to put your energy into a weakness. Eat well and prioritize. Therefore, being prepared for a test like this in advance will help you in many ways.
