Question

define common ancestor
GPT-4o mini
A common ancestor refers to an ancestral organism from which two or more species or groups have evolved. In the context of evolutionary biology, it is a species or lineage that both (or all) descendant species share, indicating that they descended from that ancestor over time through the process of evolution. Common ancestors can be identified through genetic, morphological, or fossil evidence, and they play a crucial role in understanding the evolutionary relationships and histories of different organisms.