Biology: Life on Earth with Physiology (11th Edition)
Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 25, Problem 1FIB
Summary Introduction

Introduction:

The organisms found on the planet are divided into chordates and non chordates on the basis of presence of nerve chord. Chordates include bony animals such as apes, birds human, as well as lancelets (small fishlike creatures).

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Which of the 4 characteristics of Phylum Chordata is visible on this organism?     Pharyngeal slits Dorsal hollow nerve cord Notochord Post-anal tail
Which of the following are the defining features of animals that belong to the phylum chordata? (bubble all 4 that apply) Dorsal hollow nerve chord O Spinal column Muscular post anal tail Pharyngeal slits/pouches O Lung tissue Four chambered heart O Notochord
Humans are members of the phylum chordata. As such they have a notochord. The notochord in humans; Can be found next to their spinal chord Has been lost to evolution entirely and is no longer a part of the human life cycle Becomes part of the brain stem Is an embryological feature which is mostly absorbed by the backbone
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