Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 26.8, Problem 1BC
Summary Introduction
To analyze:
The shared derived character is common to the chordates.
Introduction:
The chordates exoskeleton serves a very different purpose. Among early-diverging chordates, the endoskeleton consists of a single flexible rod located dorsally, deep within the body. Muscles move this rod, and their contractions cause the back and tail end to move from side to side, permitting a swimming motion in water.
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Chapter 26 Solutions
Principles of Biology
Ch. 26.1 - Prob. 1TYKCh. 26.2 - Prob. 1BCCh. 26.2 - Prob. 1CCCh. 26.2 - What are the mam members of the Ecdysozoa?Ch. 26.2 - In protostomes the blastopore becomes the mouth....Ch. 26.2 - In triploblastic animals, the inner lining of the...Ch. 26.2 - Pseudocoelomates lack a fluid-filled cavity. have...Ch. 26.3 - Prob. 1TYKCh. 26.4 - Prob. 1CCCh. 26.4 - Prob. 1TYK
Ch. 26.4 - Prob. 2TYKCh. 26.5 - Prob. 1CCCh. 26.5 - Prob. 1TYKCh. 26.6 - Prob. 1CCCh. 26.6 - Prob. 2CCCh. 26.6 - Prob. 1BCCh. 26.6 - What are some of the advantages of segmentation?Ch. 26.6 - Platyhelminthes possess a lophophore. a coelom....Ch. 26.6 - Prob. 2TYKCh. 26.6 - Prob. 3TYKCh. 26.7 - Prob. 1CCCh. 26.7 - Prob. 2CCCh. 26.7 - Prob. 3CCCh. 26.7 - Prob. 1BCCh. 26.7 - Prob. 1TYKCh. 26.7 - Prob. 2TYKCh. 26.7 - Prob. 3TYKCh. 26.8 - Echinoderms and chordates are both deuterostomes....Ch. 26.8 - Prob. 1BCCh. 26.8 - Prob. 1TYKCh. 26.8 - Prob. 2TYKCh. 26.8 - Prob. 3TYKCh. 26 - Prob. 1TYCh. 26 - Prob. 2TYCh. 26 - Prob. 3TYCh. 26 - Prob. 4TYCh. 26 - Prob. 5TYCh. 26 - Prob. 6TYCh. 26 - Prob. 7TYCh. 26 - Prob. 8TYCh. 26 - A defining feature of the Ecdysozoa is a segmented...Ch. 26 - Incomplete metamorphosis is characterized by...Ch. 26 - Prob. 1CCQCh. 26 - Compare and contrast the five main feeding types...Ch. 26 - Prob. 3CCQCh. 26 - Prob. 1CBQCh. 26 - Prob. 2CBQ
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- What traits in conodonts and ostracoderms are derived relative to those in hagfishes and lampreys?arrow_forwardFigure 15.33 Which of the following statements about common features of chordates is true? a. The dorsal hollow nerve cord is part of the chordate central nervous system. b. In vertebrate fishes, the pharyngeal slits become the gills. c. Humans are not chordates because humans do not have a tail. d. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.arrow_forwardAll chordates have a _______ as embryos. a. backbone b. jaws c. notochord d. kidneysarrow_forward
- You are a chordate, yet you lack most of the mainderived characters of chordates. Explain.arrow_forwardDescribe how paedomorphosis as a mechanism could explain the evolution of the chordate body plan (from echinoderm larval form to a craniate form).arrow_forwardHow does Anterior posterior axis gives chordate and higher non chordates a bilateral symmetryarrow_forward
- Explain why are hemichordates classified "not true Chordates"? (minimum of 500 words)arrow_forwardWhat characteristics make a pig a chordate? (I don't know what the pharyngeal thing means either)arrow_forwardIf members of a group, such as chordates , evolved from a common ancestor then they should show similarities in structure, which supports this hypothesis?arrow_forward
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