Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 34, Problem 2TYK
Summary Introduction
Introduction: Chordates are deuterostomes. They are coelomates with a bilateral symmetrical body structure. Chordates are divided into three clades, namely, urochordates, cephalochordates, and vertebrates. There are four shared derived characters that differentiate the chordates from other groups of organisms. These characters are evolved from other animal clades in connection with their locomotion and obtaining food, post-anal tail, endostyle, tubular nerve cord, and notochord.
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During embryonic development, a neural crest would be found in all of the following chordates, except
a. cephalochordates.
b. reptiles.
c. birds.
d. mammals.
The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somites
Humans have a coccyx at the end of the vertebral column. What structure common to all vertebrate embryos resulted in the coccyx?
a
buds
b
pharyngeal pouches
c
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d
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Chapter 34 Solutions
Biology - Study Guide
Ch. 34 - Name the animal shown in the following diagram and...Ch. 34 - Prob. 2IQCh. 34 - The following phylogenetic hypothesis shows the...Ch. 34 - a. List the derived characters of gnathostomes. b....Ch. 34 - a. What three lineages of lobe-fins survive today?...Ch. 34 - Describe the 375-million-year-old fishapod fossil...Ch. 34 - Identify the four extraembryonic membranes in the...Ch. 34 - Prob. 8IQCh. 34 - Prob. 9IQCh. 34 - a. List the derived characteristics of mammals. b....
Ch. 34 - Prob. 11IQCh. 34 - Starting from primates, list the increasingly...Ch. 34 - Prob. 2SYKCh. 34 - Prob. 3SYKCh. 34 - Prob. 1TYKFCh. 34 - Prob. 2TYKFCh. 34 - Prob. 3TYKFCh. 34 - Prob. 4TYKFCh. 34 - Prob. 5TYKFCh. 34 - Prob. 6TYKFCh. 34 - Prob. 7TYKFCh. 34 - Prob. 8TYKFCh. 34 - Prob. 9TYKFCh. 34 - Prob. 10TYKFCh. 34 - Pharyngeal slits appear to have functioned first...Ch. 34 - Prob. 2TYKCh. 34 - Prob. 3TYKCh. 34 - Prob. 4TYKCh. 34 - Prob. 5TYKCh. 34 - Prob. 6TYKCh. 34 - Prob. 7TYKCh. 34 - Non-bird reptiles have much lower caloric needs...Ch. 34 - Prob. 9TYKCh. 34 - Prob. 10TYKCh. 34 - Prob. 11TYKCh. 34 - Prob. 12TYKCh. 34 - Prob. 13TYKCh. 34 - It is thought that feathers first arose as a means...Ch. 34 - Prob. 15TYK
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- Along the notochord, segmented blocks of tissue that give rise to muscles, vertebrae, and connective tissues are calleda. neural crests.b. morulas.c. primitive streaks.d. somitesarrow_forwardChordates are named for having this generalized structure. A. Spinal cord B. Stomochord C. Notochord D. All of the choicesarrow_forwardCharacteristics that evolved in birds to allow for flight includea. reptilian-like scales on the legs.b. a hard-shelled amniotic egg.c. internal fertilization.d. thin, hollow bones in the skeleton.arrow_forward
- What is the closest common ancestor of the Allosaurus and Aves? A. Maniraptora B. Theropoda C. Dramaeosauridae D. Dinosauriaarrow_forwardWhich of the following is a defining trait found in chordate embryos? a. limb buds b. a coelom c. a pseudocoelom d. gill slits e. a larval stagearrow_forwardWhich of the following is NOT a characteristic of all reptiles? A Use lungs and skin for respiration B Lay eggs on land C Their body is covered with scales made of keratin D Their skin secretes a mucous to keep it moistarrow_forward
- It is thought that jaws, which are found in the higher vertebrates, evolved from: a. progressive hardening of the cyclostome mouth. b. cartilaginous arches used to support gills. c. small bones associated with the brain capsule. d. the bony teeth found on lamprey tongues.arrow_forwardVertebrates and tunicates share(A) jaws adapted for feeding.(B) a high degree of cephalization.(C) an endoskeleton that includes a skull.(D) a notochord and a dorsal, hollow nerve cordarrow_forwardWhat is the role of elaborated cloaca in reptiles?arrow_forward
- Describe how paedomorphosis as a mechanism could explain the evolution of the chordate body plan (from echinoderm larval form to a craniate form).arrow_forwardA divergence from ________ gave rise to tetrapods. a. ray-finned fishes c. cartilaginous fishes b. lizards d. lobe-finned fishesarrow_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_forward
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