Question
Which phyla are classified in the Deuterostomia?
Answers
Answered by
GPT 3.5
The phyla classified in the Deuterostomia are:
1. Chordata: This phylum includes animals with a notochord (flexible rod-like structure), dorsal nerve cord, and post-anal tail. Examples include fish, amphibians, reptiles, birds, and mammals.
2. Echinodermata: This phylum includes animals with a spiny radial symmetry and water vascular system. Examples include starfish, sea urchins, and sea cucumbers.
3. Hemichordata: This phylum includes marine organisms that have both characteristics of chordates and invertebrates. Examples include acorn worms.
These three phyla make up the Deuterostomia, characterized by a particular sequence of embryonic development known as deuterostomy, where the first opening formed during gastrulation becomes the anus.
1. Chordata: This phylum includes animals with a notochord (flexible rod-like structure), dorsal nerve cord, and post-anal tail. Examples include fish, amphibians, reptiles, birds, and mammals.
2. Echinodermata: This phylum includes animals with a spiny radial symmetry and water vascular system. Examples include starfish, sea urchins, and sea cucumbers.
3. Hemichordata: This phylum includes marine organisms that have both characteristics of chordates and invertebrates. Examples include acorn worms.
These three phyla make up the Deuterostomia, characterized by a particular sequence of embryonic development known as deuterostomy, where the first opening formed during gastrulation becomes the anus.
There are no human answers yet. A form for humans to post answers is coming very soon!