Question

what broader conclusion about life on earth is supported by darwin’s findings with glyptodons and armadillos?
evolution only happens in species that live in south america.
fossils can only be used to understand the size of ancient animals, not their relationships.
living organisms may have descended from extinct species that once lived in the same area.
animals that live in the same area always evolve to look identical.

Explanation:

The question is about Darwin's findings related to glyptodons and armadillos, focusing on evolution and relationships of species. The third option ("Living organisms may have descended from extinct species that once lived in the same area") aligns with Darwin's ideas on evolution, common ancestry, and geographic distribution (glyptodons are extinct, armadillos are living, both in South America, suggesting descent). Other options are incorrect: first limits evolution to South America species (wrong), second says fossils only show size (fossils show more, like relationships), fourth says animals evolve to look identical (not Darwin's view, he emphasized descent with modification, not identical appearance).

Answer:

The third option (the blue box with text "Living organisms may have descended from extinct species that once lived in the same area")