This depends... I live in Southern Michigan, which is deciduous forest because they cover most of the Northern US.
Hormones
The endocrine system includes various glands in the body that are responsible for secreting hormones into the bloodstream. Hormones are chemical substances produced by the body that regulate certain functions of cells and organs. Hormones can regulate sleep, sex, growth, stress, huger, metabolism, etc.
Most scientists don't used the word law because that implies it is infallible but generally scientific laws and theories are used interchangeably so true.
B..............................
