Match these items. 1 . pituitary gland chemical supervisor of body 2 . secrete the rate your body burns up food 3 . metabolism react to emotional stress 4 . veins make or produce 5 . adrenal glands bring blood to the heart
Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.