covalent bond
What is the special chemical signal the body uses to direct some of its activities?Hormone- A chemical signal used to control body functions.there you go
"hormones"
hormone.
Exercise is a chemical process but it is accompanied by many chemical reactions in the body.
There is not a typical flasher unit on Colorados. Turn signal are controled by the Body Control Unit. First check wiring and bulbs, if this fails to fix problem, they you will need to have Body control unit checked.
Respiratory system
Homeostasis.
enzymes helps control chemical reactions by the chemical in it called collagen when enzymes enter your body they create a chemical reactions and controls the chemical reactions you get by eating too much acids.
Enzimes
chemical digestion
the brain