points Copyright 0 2013 McGraw Hill ducation. All rights reserved. No reproducti
ID: 188898 • Letter: P
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points Copyright 0 2013 McGraw Hill ducation. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Chordata (animals with notochord at some stage in lile cycle) Craniata (euchordates with a cranium) - Vertebrata Gnathostomata (Craniata with jaws) Teleostomi (bony fishes tetrapods) Tetrapoda (our-limbed vertebrates) Amniota (tetrapods with embryos having Reptila (bony fishes) Aves (ray-finned fishes) SaroopterygiAmpibia Mammalia izards, snakes) urtles) Crocodiliabirds) coolacanths) Myxini (hagfishes) Chondrichthyes (sharks, rays Hair mammary gands Skull with upper and Beta-keratin in epidermis -Egg with amnion Suckerlike oral disc, long larval stage 7 pairs Paired limbs used for terrestrial locomotion ot ghsHeterocercal Slime ands. aocessory hearts caudal in placoid bcalos, carteeginous Unique supportive elements in skoleton or girdiles of appendages Lung or swimbladder derived from gut, bony endoskeleton Jaws, 3 pairs semicircular canals, paired appendages gi tilaments lateral to gil support 2 pairs semioircular canals, vertebrac Distinct head and triparste brain, paired speciaized sense organs, 1 pair emicieoular canais, glomenular kidrwy, ectodermal placodes Neural crest Nokodhord, dorsal hoiow nerve oord, pharyngeal sits sh are traditionally grouped nto the class Osteichthyes. According to figure 23.2, s this a valia monophyletic group? Yes O NoExplanation / Answer
Answer: No.
According to the given figure, the bony fishes are not a part of monophyletic group because it consists of the group's last common ancestor and all descendants of that ancestor. Thus it belongs to a Paraphyletic group.
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