Concepts of Biology
Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 15, Problem 1ACQ

Figure 15.3 Which of the following statements is false?

a. Eumetazoa have specialized tissues and Parazoa do not.

b. Both acoelomates and pseudocoelomates have a body cavity.

c. Chordates are more closely related to echinoderms than to rotifers according to the figure.

d. Some animals have radial symmetry, and some animals have bilateral symmetry.

Chapter 15, Problem 1ACQ, Figure 15.3 Which of the following statements is false? a. Eumetazoa have specialized tissues and

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

Metazoa is divided into two groups, i.e., Eumetazoa and Parazoa. Animals of Eumetazoa are with specialized tissues and Parazoa are animals with no tissues such as sponges.Chordates are more closely related to Echinodermsthan to Rotifers, becauseChordates and Echinoderms are formed from Deuterostomia. Diploblastic animals show radial symmetry and animals which are triploblastic show bilateral symmetry.Acoelomates do not have a body cavity, whereas, pseudocoelomates have a body cavity.

Answer to Problem 1ACQ

The correct answer is option (b).

Explanation of Solution

Explanation for the correct answer:

Option (b) both acoelomates and pseudocoelomates have a body cavity. The acoelomates do not have a body cavity. Hence, it is a false statement.

Explanation for the incorrect answer:

Option (a) eumetazoa have specialized tissues and the parazoa do not. The parazoa lack the tissues, they only have cellular level of organization. Hence, it is a true statement.

Option (c) Chordates are more closely related to echinoderms than to rotrifers. The echinoderms and the chordates belong to the deuterostomia and the rotrifers belong to the protostomia. Hence, chordates are more closely related to echinoderms than to rotrifers is a true statement.

Option (a) some animals have radial symmetry and have bilateral symmetry.Different animals have different symmetry. Hence, it is a true statement.

Conclusion

Acoelomates do not have a body cavity, whereas, pseudocoelomates have a body cavity. Thus, the statement (b) is false.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Which of the following groups includes all of the others? a. Protostomes c. Eumetazoans b. Echinoderms d. Ecdysozoans
You read a research article presentsing new phylogenetic data demonstrating that species that contain a pseudocoelom are not closely related to one another. This suggests that:   A. evolution of the pseudocoelom occurred more than once.   B. the pseudocoelom evolved before the coelom.   C. pseudocoelomates are more closely related to acoelomates than one another.   D. pseudocoelomates are more closely related to coelomates than one another.
Suppose you discover a new species of animal that does not have body segments, but is triploblastic, coelomate, and cephalized. Under the molecular phylogenetic scheme, you would allocate it to which phylum? A)Platyhelminthes. B)Arthropoda. C)Nematoda. D)Mollusca. E)Echinodermata.

Chapter 15 Solutions

Concepts of Biology

Additional Science Textbook Solutions

Find more solutions based on key concepts
Define histology.

Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)

What is the difference between cellular respiration and external respiration?

Human Physiology: An Integrated Approach (7th Edition)

Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Phylogeny and the Tree of Life; Author: Professor Dave Explains;https://www.youtube.com/watch?v=KLMn4XwS8Tw;License: Standard YouTube License, CC-BY