What adaptation do lungfish have te help them walk and live on land?

biological adaptation

Explanation:

lungfish's lung is a biological adaptation. A biological adaptation is a physical change in an organism that develops over time. Like all fish, lungfish have organs known as gills to extract oxygen from water. The biological adaptation of the lung allows lungfish to also extract oxygen from the air.

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answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;