What is the correct term for the onset of menstruation?

Research conducted in 2005 found that ______ percent of adolescents felt close to God and believed in the traditional ideas of heaven and hell

16 25 71 2

As soon as an action potential at one point along the axon occurs, there is

a brief reversal of the membrane's electrical charge. Now the inside of the axon is positive relative to the outside of the axon. This reversal of charges is due to the flow of __________ ions into the axon. a. positively charged potassium b. negatively charged potassium c. positively charged sodium d. negatively charged sodium e. both negatively and positively charged sodium