What features of development indicate that echinoderms and chordates are more closely related to each other than they are to oth

Question

sdas [7]

4 years ago

13

What features of development indicate that echinoderms and chordates are more closely related to each other than they are to oth

er animals

Biology

2 answers:

Tom [10] · Answer 1 · 2021-12-11T01:06:20+03:00

Chordates are eucoelomate deuterostomes, and probably share a common ancestor with echinoderms. Three important characteristics unite the Phylum Chordata. At some point in their life cycle, all chordates have a notochord, a dorsal hollow nerve cord, and pharyngeal gill slits.

Sedbober [7] · Answer 2 · 2021-12-11T02:08:11+03:00

Answer:

Deuterostomes include both phyla echinoderms and chordates, which includes the vertebrates.

Echinoderms and Chordates are more closely related to each other than they are to other animals because the coelom ( an open fluid-filled body cavity lined with tissues) found in the animals of this phylum is made from the digestive tube & the endoskeleton present in the body are composed of 95% of calcium carbonate just like present in chordates.