88
edits
Changes
Jump to navigation
Jump to search
Line 12:
Line 12: − +
Echinodermata are the closest to chordata, because they both have an endoskeleton
Apart from the spinal cord, other common features include a single [[brain]] and a zig-zag [[muscle]] structure in the [[torso]].
Apart from the spinal cord, other common features include a single [[brain]] and a zig-zag [[muscle]] structure in the [[torso]].
Scientists believe that the chordata are closest to the [[arthropoda]] (shelled, joint-legged animals such as [[insect]]s and [[crustacean]]s) and [[annelida]] (earthworms) in biology, due to common features such as [[segment]]ation, which are not seen in other phyla such as the [[mollusca]] (molluscs) or [[coelenterata]] [[jellyfish]] and [[sea anemone]]s.
Scientists believe that the chordata are closest to the [[arthropoda]] (shelled, joint-legged animals such as [[insect]]s and [[crustacean]]s), [[echinodermata]] (spiny-skinned animals such as [[starfish]] and [[sea urchin]]s), and [[annelida]] (earthworms) in biology, due to common features such as [[segment]]ation, which are not seen in other phyla such as the [[mollusca]] (molluscs) or [[coelenterata]] ([[jellyfish]] and [[sea anemone]]s).
==See also==
==See also==