Deuterostome

Real World Example

Imagine trying to assemble a piece of furniture without instructions, where you find yourself installing the back panel before the shelves. This process mirrors how deuterostomes form, as they develop their anus from the blastopore before the mouth, much like starting with the back panel before adding the functional parts. Just as the back panel provides the initial structure for the rest of the furniture, in deuterostomes, the blastopore forms the foundational opening that later leads to the development of other parts, showing how sometimes starting with the less obvious step is crucial for proper assembly.