What is means by metameric segmentation?

Metameric segmentation refers to the repeated division of the body into similar segments or units, known as metameres. This feature is characteristic of certain animal phyla, particularly annelids (like earthworms) and arthropods (like insects). Each segment can contain similar sets of organs and structures, allowing for greater complexity and specialization while maintaining a level of redundancy. This segmentation enhances the organism's ability to adapt and respond to its environment.