Which body system and its organs are incorrectly matched? a. endocrine - mouth, lungs, pituitary b. reproductive - ovaries, testes, uterus c. digestive - mouth, stomach, intestines d. cardiovascular - heart, blood, blood vessels e. lymphatic - thymus, vessels, nodes?

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme