The thyroid gland makes three hormones that it releases or secretes into the bloodstream. Two of these hormones, called thyroxine and triiodothyronine , increase your body's metabolic rate. Essentially, the body's metabolic rate is how quickly the cells in your body use the energy stored within them.
In evolutionary biology, convergent evolution is defined as the process whereby distantly related organisms independently evolve similar traits to adapt to similar necessities.
