Answer:
i do both but my skates broke when i was skating in the streets by my self- i almost broke my ankle lma0
Eukaryotes
Hope this helps xox :)
A. Pacemaker cells located in the atria fire before the pacemaker cells in the ventricles. B. It takes time for hormones to diffuse from the atria to the ventricles to trigger contraction. C.The electrical signal generated in the right atrium is delayed at the AV node before passing to the ventricles. D.The ventricular muscle cells contract more slowly than the atrial muscle cells.
