The undigested substances are passed out of the body through the a) kidney b)small intestine c)anus d)large intestine

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You should expect adults to respect you in return. true false

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