U NIT 16 (C H. 22) G AS E XCHANGE & E XCRETION How do organisms: Obtain oxygen and eliminate carbon dioxide? (or vice versa…in plants?) Maintain osmotic.
Respiration The respiratory system brings air rich in oxygen into the body and gets rid of air rich in carbon dioxide.
Unit 16 (Ch. 22) Gas Exchange & Excretion
Respiration The respiratory system is a series of tubes that brings oxygen into the body and gets rid of carbon dioxide.
