Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 33, Problem 10TY
A major finding of recent molecular studies is that
- a. the presence or absence of the mesoderm is not important in phylogeny.
- b. all animals do not share a single common ancestor.
- c. body symmetry, whether radial or bilateral, is not an important determinant in phytogeny.
- d. the echinoderms are not included in the deuterostome clade.
- e. the presence or absence of a coelom is not important for classification.
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Which of the following statements is NOT true regarding protostome diversity?
A.
Of the 30 animal phyla, more than 2/3 (22 phyla) are protostomes.
B.
There are more mollusk species than Priapula.
C.
There are more lophotrochozoans than ecdysozoans.
D.
A major feature distinguishing different developmental characteristics.
Which of the following statements is BEST supported by the phylogenetic tree?
A
The development of a bony skeleton was a significant evolutionary step for ocean-dwelling animals.
B
Most warm-blooded animals evolved to have hair, while cold-blooded animals did not.
C
Most land animals require a vertebral column, while ocean animals do not.
D
The evolution of the amniotic egg was specific to ocean-dwelling animals.
Chapter 33 Solutions
Biology
Ch. 33.2 - Core Skill: Connections Look back to Figure 25.8....Ch. 33.2 - Prob. 2CSCh. 33.3 - Prob. 1CSCh. 33.3 - Prob. 1EQCh. 33.3 - Prob. 2EQCh. 33.3 - Prob. 3EQCh. 33 - Prob. 1TYCh. 33 - Prob. 2TYCh. 33 - Prob. 3TYCh. 33 - In triploblastic animals, the inner lining of the...
Ch. 33 - Prob. 5TYCh. 33 - Prob. 6TYCh. 33 - Prob. 7TYCh. 33 - Naturally occurring identical twins are possible...Ch. 33 - Prob. 9TYCh. 33 - A major finding of recent molecular studies is...Ch. 33 - Fierce debate centers on whether ctenophores or...Ch. 33 - Why was the evolution of a coelom important?Ch. 33 - Prob. 3CQCh. 33 - Discuss the many ways that animals can affect...Ch. 33 - Prob. 2COQ
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