This will affect signal transduction at the synapse by fewer ion channels will open in the postsynaptic. The correct answer is D.
<span>To create a seal on an unresponsive person’s face using a ventilation mask, lift the Person's jaw into the mask.
The upper part of our head has a larger diameter compared to our jaw.
So, when putting a ventilation mask for an unresponsive person, it would be faster and easier if we enter the mask from the jaw.</span>
A testable question then testable hypothesis I think?
I would advise you do more research on .gov websites. But I don't believe they will take anything other than a State I.D.