🌳Phylogeny is a method to understand the diversity of life by tracing the evolutionary history of species.
🔗A phylogenetic tree represents the relationships between different species based on common ancestry.
🦖Homologous structures are similar in organisms because of inheritance from a common ancestor.
🤝Analogous structures are similar in organisms due to convergent evolution, not common ancestry.
📚Analyzing homologous and analogous structures helps biologists infer the phylogeny of organisms.
What is phylogeny?
—Phylogeny is the study of the evolutionary history and relationships among species.
What does a phylogenetic tree represent?
—A phylogenetic tree represents the evolutionary relationships between different species.
What are homologous structures?
—Homologous structures are similar in organisms due to inheritance from a common ancestor.
What are analogous structures?
—Analogous structures are similar in organisms due to convergent evolution, not common ancestry.
How do biologists infer the phylogeny of organisms?
—Biologists analyze homologous and analogous structures to infer the phylogeny of organisms.
00:00Phylogeny is a way to understand the diversity of life.
00:09A phylogenetic tree represents the relationships between species.
00:36Homologous structures are similar due to common ancestry.
02:46Analogous structures are similar due to convergent evolution.
03:49Biologists analyze homologous and analogous structures to infer phylogeny.
