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The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

What is the most abundant vertebrate on earth?