TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: How the Thyroid Functions The thyroid gland operates as part of a feedback mechanism involving the hypothalamus and the pituitary gland.

SOLUTION: The thyroid gland is controlled by a negative feedback loop that includes the hypothalamus and pituitary gland.

PROBLEM: It remains liquid down to absolute zero at ordinary pressures, but it can be readily be solidified by increasing the pressure.

SOLUTION: Continually increasing the pressure on the liquid will eventually cause the substance to solidify.

PROBLEM: Cold-blooded or ectothermic animals like reptiles or fish have body temperatures that change according to the surrounding temperature.

SOLUTION:
Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in temperature.