Both ancestral birds and ancestral mammals shared a common ancestor that was terrestrial. Today, penguins (which are birds) and seals (which are mammals) have forelimbs adapted for swimming. What term best describes the relationship of the bones in the forelimbs of penguins and seals, and what term best describes the flippers of penguins and seals?1. analogous, analogous2. analogous , homologous3. homologous , homologous4. homologous , analogous

The term that best describes the relationship of the bones  and flippers are : ( 2 )

Analogous,  homologous

Analogous structures are structures found on different organisms which are similar to one another in function. The analogous structure found in both Penguins and seals in the question is "The bones".

Homologous structures are similar structures found on related organisms and the homologous structure in the question is the presence of flippers in both the Penguins and seals.

Hence we can conclude that The term that best describes the relationship of the bones and flippers are Analogous and homologous

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