<span>Ab Roller Evolution is made of metal. It supports neck, head and upper body during workout. It is an upper body trainer: works chest and core. You can do push ups, sit ups, dips. By providing improved support, it reduces stress and strain on body.</span>
<span />Description above is from Amazon.
It is a good idea but has some problems with its design. There is no way to secure it on the floor during exercise. So it moves around when pushed against and would not provide support. A normal crunch will likely work out better.
Three and five.
steroids unless medically prescribed are illegal and have nasty side effects and are highly addictive.
Answer: the antigens identify the foreign invader
Answer:
The correct answer is D.
Explanation:
The normal value range of pH is 7,35-7,45.
If the pH es <u>higher than 7,45</u> we say it is alkalosis and if the pH es <u>lower than 7,35</u> we say it is acidosis. That being said, we can now rule out option B and C.
Then we have to define <u>respiratory acidosis:</u> it is a decrease of pH because of a high value of PaCO2 (in this case as a result of hypoventilation). The normal range of PaCO2 is 35-45 mmHg.
So if we take all this in consideration, the only option with a low pH and a high paCO2 is option D.
