Answer:
This led to disruptive selection among the Galàpagos finches.
Step-by-step explanation:
"Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle."
Phenotypes like small or strong beaks both are extremes among Galápagos finches populations.
Seeds sizes produced this type of natural selection against the average individual in Galápagos finches population.
Reference: Scoville, Heather. “What Is Disruptive Selection?” ThoughtCo, ThoughtCo, 16 Feb. 2019