Chapter 32: Protostome Animals

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

Multiple Choice

 

1. Which of the following is not one of the traits that unite the protostomes?
2. Dorsal nervous system
3. Anterior brain
4. Bilaterally symmetrical body plan
5. Development of a mouth from a blastopore (in many species)
6. All of the above

Answer: a

Textbook Reference: 32.1 What Is a Protostome?

Page: 667

Bloom’s Category: 1. Remembering

 

2. Which of the following animals have complete digestive tracts?
3. Flukes
4. Tapeworms
5. Horsehair worms
6. Annelids
7. None of the above

Answer: d

Textbook Reference: 32.1 What Is a Protostome?

Page: 667–669

Bloom’s Category: 2. Understanding

 

3. Which of the following has not been a major feature of protostome evolution?
4. Parasitism and complex life cycles
5. Segmentation of the body cavity
6. Improved mechanisms of locomotion, including muscles (versus cilia) for body movement
7. Evolution of mechanisms for ingesting large prey
8. Evolution of hard external body parts (exoskeletons)

Answer: d

Textbook Reference: 32.1 What Is a Protostome?

Page: 667–671

Bloom’s Category: 3. Applying

 

4. Of the groups listed below, which is a descendant of the most recent common ancestor of lophotrochozoans?
5. Sponges
6. Vertebrates
7. Mollusks
8. Insects
9. Cnidarians

Answer: c

Textbook Reference: 32.1 What Is a Protostome?

Page: 668

Bloom’s Category: 2. Understanding

 

5. Many lineages of lophotrochozoans have a type of free-living larva known as a
6. polyp.
7. planula.
8. trochophore.
9. nauplius.
10. None of the above

Answer: c

Textbook Reference: 32.1 What Is a Protostome?

Page: 668

Bloom’s Category: 1. Remembering