Question

If you rub your finger across the body of an earthworm, you may notice little ripples. Earthworms were among the first organisms to display _____.

Answer 1

The correct answer is: segmentation.

Segmentation is the fact that some animals and plants have parts of the body that are divided into segments, which typically have a similar structure (they are then called repetitive segments).

Humans also have a segmentation, for example in their spine.