Can someone please help?​

47. a student is frightened by a loud noise, which results in a hormone being released into the blood. the hormone causes the student's heart to beat rapidly. the two systems that work together to cause this reaction are the endo- crine system that secretes the hormone and the (1) nervous system (3) excretory system (2) reproductive system (4) digestive system

Kareem saves his coins in a jar30 percent of the coins are pennis if threre are 24 pennis in the jar how many coins does kareem have

¿cómo se llama el movimiento arquitectónico en españa durante los siglos vii y xv?