Question

produced by the pituitary to help relieve pain
the \fight or flight\ hormone
regulates the body’s energy
pituitary gland epinephrine endocrine system pancreas reproductive glands
hormones endorphins thyroid gland

Explanation:

1. "produced by the pituitary to help relieve pain" matches with "endorphins" because endorphins are produced by the pituitary gland and act as natural pain relievers.
2. "the 'fight or flight' hormone" matches with "epinephrine" as epinephrine (adrenaline) is the hormone released during the fight - or - flight response.
3. "regulates the body’s energy" matches with "thyroid gland" because the thyroid gland produces hormones (like thyroxine) that regulate the body's metabolic rate and energy usage.

Answer:

1. produced by the pituitary to help relieve pain - endorphins
2. the "fight or flight" hormone - epinephrine
3. regulates the body’s energy - thyroid gland