Which statement about the evolution of mammals is true? a Mammals can only walk on land.
b All mammals have vestigial structures.
с
Mammals have homologous structures.
Mammals come from more than one common
ancestor

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where are the choice options?

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

c) should be the answer.