Why does your heart never tire of constantly beating to pump blood throughout your body?

The williams twins are in your dental office for a routine checkup. mrs. williams informs you that they both eat the same quantity of sweets. however, jeanne eats her sweets all at once, whereas carol divides her sweets throughout the day. which of the twins is most likely to have tooth decay? why?

When studying heredity, what is the relationship of dna based and traits? super urgent !

Wich technque is not recommended for use as a supporting detail