is the group of chordates considered monophyletic? yes or no? why? ProtochordatesProtostomesDeuterostomesCHORDATESTripartite coelom,larvaChordate ancestor(Notochord, post-anal tail,|dorsal hollow nerve cord)Deuterostome ancestor(Gill slits)Bilateral ancestor(Dorsoventral axis, mesoderm, through gut,cephalization, hox domains in trunk,tinman heart, pax6/emx/otx domains in head)FEcdysozoaFLophotrochozoaEchinodermsHemichordatesUrochordatesCephalochordatesVertebrates

A monophyletic group, sometimes also called as clade, includes an ancestral taxon and all of its…

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is the group of chordates considered monophyletic? yes or no? why?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter27: Introduction To Animal Diversity

Section: Chapter Questions

Problem 9RQ: An animal whose development is marked by radial cleavage and enterocoely is. a deuterostome an...

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Concept explainers

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.

Question

is the group of chordates considered monophyletic? yes or no? why?

Protochordates
Protostomes
Deuterostomes
CHORDATES
Tripartite coelom,
larva
Chordate ancestor
(Notochord, post-anal tail,
|dorsal hollow nerve cord)
Deuterostome ancestor
(Gill slits)
Bilateral ancestor
(Dorsoventral axis, mesoderm, through gut,
cephalization, hox domains in trunk,
tinman heart, pax6/emx/otx domains in head)
FEcdysozoa
FLophotrochozoa
Echinoderms
Hemichordates
Urochordates
Cephalochordates
Vertebrates

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