University of Rio Grande

Invertebrate Zoology Bio 33404

Sample Exam 3

This sample test is meant to give you an idea of the types of questions that will be on the exam. Simply memorizing the answers to these questions will not get you a good grade on the exam. You should consider these questions as well as related questions.

Multiple choice : Chose the BEST answer to each of the following questions. There will be 40 questions of this type on the exam. Each question is worth 1 points. Here are 12 examples.

1. Annelids are
a. aceolomates b. eucoelmates c. pseudocoelomates d. quasicoelomates

2. Oligochaetes differ from Hirudinea in all of the following EXCEPT
a. Oligochaetes lack suckers and Hirudinea have suckers
b. Olligochates have some chaetae and Hirudinea have none
c. Oligochates are free-living and Hirudinea are parasites
d. Oligochaets have botyroidal tissue and Hirudinea do not

3. The following characteristics are found in all arthropods EXCEPT
a. exoskeleton of chitin and protein
b. open circulatory system
c. ventral nerve cord with segmental ganglia
d. respiratory system of trachea and spiracles

4. A crustacean that is parasitic on crabs and has a fungal-like body structure is
a. Peripatus b. Pentastoma c. Nauplius d. Sacculina

5. Insects classified as Apterygota
a. have no wings b. have external wing buds
c. have internal wing buds d. hold their wings out from the body at rest

6. The insect order know as the true bugs is
a. Odonata b. Hemiptera c. Hymenoptera d. Exopterya

7.. A biramous appendage has __ branches
a. 1 b. 2 c. 3 d. >3

8–12. Match the following
___8. “married wings”
___9. two pairs of equal sized wings
___10. one pair of wings
___11. scaled wings
___12. hardened forewings

a. coleoptera
b. diptera
c. emphermerata
d. hymenoptera
e. lepidoptera
f. odonata
g. orthoptera

 

Essays (40 points): This section consists of 4 essay questions worth 10 points each. Here are two examples.

1. The phylum Annelida has 2 classes: Polychaeta and Clitellinata
a. State 3 characteristics they have in common.

b. What are the differences between these two classes?

 

2. Distinguish between insects with gradual metamorphosis versus insects with complete metamorphosis. Give several examples of each type.

Identification (20 points) This section consists of 8-12 stations each with 1-3 questions. Observe the organisms at each of the stations and answer the questions indicated next to the sample. Below are a few samples using photos. The exam with have microscopes with slides and lab specimens for most.

1. This cross-section is from which animal?

2. The circular structure in the center is which organ?

 

3. What is the common name of this animal?

4. To what phylum does it belong?

 

4. What is the genus name of this animal?

5. What is the name of the pointed posterior section?