Which of the following hormones is suddenly secreted into the bloodstream of a frightened person? By: Sunday|Published on: Dec 22|Categories: Biology WAEC| 0 comments A. insulin B. adrenaline C. thyroxine D. parathormore Correct Answer: Option B – adrenaline Users Also Read These:Progesterone is secreted by the?The part of the ruminant stomach from which…If a person has two alleles of the sickle cell…A guarantee given by one person or party to another…The hormones secreted by pancreas serves to?SEE ALSO Which of the following cell organelles is the site for the production of ATP?