Zoology - Study Guide for Exam 2 Return to Zool Home

 

Protistans (chapt 16)

1. Be able to distinguish the following taxa:

2. Be able to explain amoeboid movement.

3. Know how protistans eat, digest their food , excrete wastes and respire.

Poriferans (chapter 17)

1. Know the basic structure of the sponge body and the types of skeletal structures found in this phylum.

2. Be able to distinguish the classes: Calcispongiae, Hyalospongiae, Demospongiae and sclerospongiae.

2. Know how sponges eat, digest their food, excrete wastes and respire.

Cnidaria (chapter 18)

1. Know the characteristics of the phylum including traits that represent advancements over the sponges, and those that are unique to the Cnidaria. (see notes, Biological contributions box p. 393, and Characteristics box, p 394)

2. Know what dimorphism is and be able to distinguish polyp from medusa.

3. Know how cnidarians eat, digest their food, excrete wastes and respire.

4. Be able to distinguish the Cnidarian classes:

5. Helpful review questions from text: (p. 414) 2-7, 14, 15, 17.

Platyhelminthes (chapter 19)

1. Know characteristics of phylum from notes and text boxes: Position in animal kingdom, Biological contributions and characteristics fo phylum (pp. 417-418).

2. Know characteristics of classes:

3. Helpful review questions from text: (p. 431) 1, 5, 10.

Nematodes and Rotifers (chapter 20)

1. What advancements do pseudocoelomates show over acoelomates?

2. What are Rotifers? What is unique about their life cycle?

3. What are characteristics of the phylum Nematoda?

4. Know life cycle of the following nematode parasites: Ascaris, Necator (hookworm), Trichinella.

5. Review questions from text (p. 447): 1- 3

Molluscs (chapter 21)

1. Know the characteristics of the Molluscs. what advancements do they show over pseudocoelomates? What structures are unique to this group? (see the usual boxes)

2. What is the evolutionary relationship of molluscs and annelids?

3. Know the functions of: radula, mantle, foot, shell and how they differ in the classes.

4. Be able to distinguish the classes:

5. How does the life cycle of freshwater mussels differ from that of marine bivalves?

6. Review questions from text: 7, 8, 10, 11, 12.

Annelids (chapter 22)

1. Know their characteristics and biological cintributions.

2. Explain how the hydrostatic skeleton works and what structures are involved.

3. What annelid class is most primitive? In what ways are the others more specialized?

4. Be able to distinguish the annelid classes:

4. How do errant polychaetes obtain food? (example: Neresis)

5. What adaptations have sedentary polychaetes evolved to obtain food? (examples: Sabella, Chaetopterus, Arenicola)

6. What is swarming in polychaetes? What are advantages and disadvantages of this means of reproduction?

 

Arthropods (chapter 23)

1. What arthropod characteristics are shared with the annelids?

2. What arthropod characteristics represent advancements over the annelids?

3. What characteristics are unique to this group?

4. Describe what the ancestor to the arthropods probably looked like.

5. What are trends in arthropod evolution?

6. Explain the process of molting (ecdysis), including hormonal control (from text).

7. How do gradual and complete metamorphosis differ? What are advantages and disadvantages of each?

8. What are the 4 subphyla of arthropods? What characteristics distinguish them?

9. Be able to distinguish the classes of uniramians and chelicerates.

10. Discuss the different ways in which spiders use the silk they produce with their spinnerettes.

11. What adaptations have insects evolved to aid in flight?

12. What types of respiratory systems are seen in arthropods.

Terms: cuticle, epicuticle, endocuticle (procuticle), walking legs, pedipalps, tagmata, metamere, somite, instar, mandibles, chelicerae, trachea, book lungs, gills.

Review questions from text: 3, 5, 10.