Chest recoil
is the re-expansion of the chest. Complete recoil is necessary so that the
blood can re-fill the heart’s chambers between compression. Therefore, it is indispensable
because, as the chest is elevated, the negative pressure that is applied
actually causes the blood to be drawn back into the heart and save the life of
someone whose heart stopped or who is in a condition called cardiac arrest. An
activity using a plunger and pulling back on it in water-clogged sink can be
link that will show how important to emphasize complete recoil where it permits
the output of blood in performing a high quality Cardio Pulmonary Resuscitation
(CPR).
Post a picture of the equation
Ok, DNA Polymerase is an enzyme that joins free nucleotides to both existing strands of DNA, which means it isn't D (which is helicase, by the way). They normally work in pairs of two for this function, so it isn't C; this is because if it created a fork, there would only be one needed. Now, concerning A & B, you'll have to be careful. Depending on how A is worded contextually, it could be correct, or it could not. I'm not sure I like the wording "chunks." Which is why I think it's B. Polymerase joins one strand of the "unzipped" DNA to free nucleotides that match it, and these aren't "chunks of DNA." Now, Polymerase is VERY accurate, only making a mistake once every millionth (or billionth?) nucleotide matchup. When it does make a mistake (most of the time), it'll go back and fix it. So I believe the best answer is B, it checks for errors.
Hope this helps!
A. Compounds
hope this helped
If element X has 15 protons, it would also have 15 electrons.
