div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220304205aa7dff47f8b9ac5648cb1d3html5page1jpg target=_blank img data-url=exchange-diffusion-of-oxygen-and-alveoli-and-capillaries-are-one-cell-thickhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: mrarnoldsclassesweeblycommrarnoldsclassesweeblycomuploads2843284378964_-_gas · The exchange diffusion of oxygen and Alveoli and capillaries are one cell thick loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220304205aa7dff47f8b9ac5648cb1d3html5thumbnails1jpg width=140 height=200 adivdiv