Questions tagged 'Echinoderms'
2 questions
L
Lavina Tromp
Feb 11, 2025
What calcium-rich formation builds the internal skeleton of echinoderms?
What calcium-rich structure forms the internal skeleton of echinoderms?
According to the phylogeny tree which phylum of organisms are most closely related to chordates?
According to the phylogenetic tree, which phylum of organisms is most closely related to chordates? Specifically, how do echinoderms, such as starfish, fit into this relationship?