Question

Write a scientific explanation about how different organisms compare throughout development.

Please write it in CER format.

Answer 1

Evolution is why scientists study different organisms and how their embryonic development occurs. This study mainly involves DNA, embryos, and the organism's anatomy. As embryos of different species develop, their differences become more visible, especially for those that do not have close genetic relationships. Organisms with common ancestors often have similarities for a more extended period than those that do not share any relationship.

Answer 2

Due to the fact that some homologous components can only be observed during embryonic development, embryology was crucial to understanding how a species has evolved.

Step-by-step explanation:

The discipline of comparative anatomy known as embryology examines how vertebrate animals grow before giving birth or hatching. Similarities between embryos and adults can be evidence of shared ancestry. For instance, as seen in the figure below, all vertebrate embryos possess tails as well as gill slits.

The embryological stages of several creatures are very similar, pointing to shared ancestry.