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THIRD LECTURE EXAM IN INVERTEBRATE ZOOLOGY, BIOLOGY 03050, FALL 1999

Dr. W. Crone (303 FTZ, 629-7439, cronewil@hvcc, http://www.hvcc.edu/academ/faculty/crone/index.html)

Tuesday, November 16, 8:45 AM (Week 12)

Friday of week 12 (November 19) will be the last day to withdraw from classes.

Bring sharpened #2 pencils (I won't have them on me)!!

This will cover materials covered in lecture for weeks 8-11.

I would recommend that you are comfortable with your lecture notes, lecture handouts, and additional topics covered by homework assignment # 3. You may find the textbook particularly useful in preparing your thoughts for the mini essays below.

Mini essay topics for the exam. You are welcome to think about these topics and prepare ahead of time, but you will not be allowed to bring any notes or prewritten essays into the exam. You will be asked to write on TWO of these on the exam (the other mini essay topic will be covered by multiple choice questions).

1. Members of the phylum Mollusca are highly diverse, yet share a general body plan. What is this body plan, and show how a) snails, b) clams, and c) squids each fall under it.
2. Earthworms are known for burrowing. How do they burrow (describe in terms of structure and function) and how do earthworms enhance the soil?
3. What are major features of the arachnids? Why are ticks and mites more important medically to human beings than spiders?

Here are a number of multiple choice questions from a previous year's tests. Although the emphasis may be different from this year's, it should give you a flavor of the multiple choice questions I may ask. The correct answer is listed on the bottom of the next page. As you have experienced, my general approach to multiple-choice questions is to have them cover the lecture material, but in a way that makes you think.

1. The ciliated gill of the molluscs is unique and hence given the specialized name of:

1. gill.
2. radula.
3. mantle.
4. ctenidium.
5. glochidium.

2. Class Polyplacophora is named in chitons for the presence of:

1. eight pairs of gills.
2. multiple calcerous layers (growth lines) of the shell.
3. eight dorsal shell plates.
4. eight to ten arms used for predation and locomotion.
5. eight hearts arranged in a linear series.

3. Which of the following classes of molluscs will contain the most rapidly moving members?

1. Class Bivalvia or clams
2. Class Cephalopoda or squids
3. Class Gastropoda or snails
4. Class Polyplacophora or chitons
5. Class Scaphopoda or tusk shells

4. In the annelids, each internal compartment of the body cavity (coelom) is lined with material derived from what germ layer?

1. ectoderm
2. phisoderm
3. mesoderm
4. endoderm
5. pachyderm

5. Characteristics typical of annelids include all of the following except:

1. open blood circulation
2. external and internal segmentation
3. individual kidney units or nephridia
4. complete digestive tract
5. ventral nerve cord

6. Which of the following statements about arthropods is false?

1. Arthropods must molt occasionally in order to grow.
2. Arthropods move via jointed appendages.
3. Arthropods typically reach a large size, greater than six inches.
4. Arthropods use sensory hairs to inform them about their surroundings.
5. Arthropods are more widely and more densely distributed than members of (almost) any other phylum of animals.

7. Chelicerate arthopods possess which of the following?

1. pedipalps
2. antennae
3. parapodia
4. mandibles
5. three pairs of walking legs

8. An insect has the most pairs of which of the following structures?

1. wings
2. antennae
3. walking legs
4. compound eyes
5. mandibles

Answers: 1-D, 2-C, 3-B, 4-C, 5-A, 6-C, 7-A, 8-C

|main page| |background| |03028: Physiology| |03048: Anatomy|

|03050: Invertebrate Zoology| |03051: Vertebrate Zoology| |03074: Economic Botany|

Please send comments and questions to: cronewil@hvcc.edu

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Copyright 1999 by Wilson Crone

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This page updated on October 25, 1999