Answer: A) Water Explanation: Water molecules are polar molecules
The refractory period makes the cell rest. In this period, the cell becomes able to depolarize again by collecting ions.
To determine the number of years for a person to live, we can divide the total number of beats in a lifetime to the number of beats per minute. We first need to check if the units are similar so we can cancel them. We do as follows:
3.1x10^9 beats / 68 beats per minute = 45588235.29 minutes ( 1hr / 60 min ) ( 1 day/24hr) ( 1 year / 365 days ) = 87 years
Hope this answers the question. Have a nice day.
Answer:
you answers are sodium and chloride oxygen
Explanation:
sodium
chloride oxygen