One-celled animals (150x) , Earthworm skin (8x) , Stomata of the leaf275x) , Insect spiracle (55x) , Insect air tubes (75x) , Salamander’s gill 210x) , Gill of a fish (55x) , Lung (360x)
One-celled animals (150x) , Earthworm skin (8x) , Stomata of the leaf275x) , Insect spiracle (55x) , Insect air tubes (75x) , Salamander’s gill 210x) , Gill of a fish (55x) , Lung (360x)
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