In the axolotl, development is altered. Adult axolotls retain features (external gills and aquatic life) that were juvenile in its ancestors, a phenomenon known as
A) "evo-devo."
B) paedomorphosis.
C) homology.

Question

Quizplus · Accepted Answer

Paedomorphosis is the retention of juvenile features in an adult organism. In the case of the axolotl, it retains its external gills and aquatic life that were juvenile traits in its ancestors. "Evo-devo" refers to the study of how development has evolved over time, which is related to but not the same as paedomorphosis. Homology refers to the similarity of traits between different organisms that are inherited from a common ancestor, but this does not directly relate to the altered development of the axolotl.

In the Axolotl, Development Is Altered