Biology, 01.09.2019 14:30, mvongphakdy8746

(a how would biologists explain how a living rose species with thorns evolved from an ancestral rose species that lacked thorns? (b how would biologists explain how a living rose species lacking thorns evolved from an ancestral rose species that had thorns?

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(a how would biologists explain how a living rose species with thorns evolved from an ancestral rose...