Spinal cells signal the pitutary gland to release thyroid stimulating hormones (TSH)
Answer:
Your chances of getting in a plane crash are about 0.007% based on what I read in a magazine a few years back. 26, 2020 The odds of being killed on a single airline flight are one in 4.7 million. After that, the likelihood of a plane crash is much lower and people can relax into the flight.
I'm no expert at all so don't take my word but number one looks like it will make the most sense. Because it has the word reproductive system and yeah...