Need ! the junction between the digestive tract and the respiratory system is the esophagus pharynx epiglottis trachea

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive

There are blank calories in a gram of carbohydrate

During polarizacion potassium has a blank charge sodium has a blank charge and calcium has a blank charge