MARKING BRAINLIEST! A group of students rode a rollercoaster at a park. The rollercoaster ride caused their hearts to beat quickly when adrenaline, a hormone, was released into the bloodstream. Which body system is responsible for producing the hormone?

A. Integumentary system

B. Endocrine system

C. Nervous system

D. Muscular system

C nervous system

Explanation: because while adrenaline is produced in the medulla and adrenal gland it also is produced and partialy realeased by the nervous system.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

2b2t

explanation:

2b2t