The electrical property of the membrane changes. There is a small undershoot in the membrane potential.
The answer is XX.
X is a female, XX is a female, Y is a male, XY is a female
C. your core will be made of protons will be made of protons and neutrons while being surrounded by "shells" of electrons.
The pentose sugar on RNA is called ribose. (a trick to remember it is that the "R" in RNA stands for ribo)
Hope this helps :)