Question

which explains how physical evidence in the fossil record may be used to determine common ancestry between organisms?
a) the fossil record can show which organisms lived at approximately the same geologic time. those living at the same time were the ancestors of organisms living today.
b) the fossil record can show how the wings of dragonflies and birds are homologous structures, so there was likely a common ancestor for both.
c) the fossil record shows that some organisms remain relatively unchanged from their ancestors over thousands of years.
d) the fossil record preserves some physical features that are similar to those of modern organisms, suggesting a common ancestor or the same developmental origin.

Explanation:

La evidencia física en el registro fósil se utiliza para determinar la ascendencia común entre organismos. Las estructuras homólogas, como las alas de las libélulas y las aves, indican una ascendencia común ya que provienen de un ancestro común. La opción B se refiere a estructuras homólogas y una posible ascendencia común, lo que responde a cómo la evidencia física en el registro fósil se utiliza para determinar la ascendencia común.

Answer:

B) The fossil record can show how the wings of dragonflies and birds are homologous structures, so there was likely a common ancestor for both.