NAU Biology BIO 190 NAU
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BIO190: The Class: Terrestrial Mandibulates: Assignment 21-1

Study Questions

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Please answer the following questions using the forms provided.

1. List three ways that members of the Subphylum Uniramia have touched your life today. List means just that. 1 point.

2. Describe the first aid measures required for centipede/human encounters. 1 point.

3. Compare centipedes with millipedes (Class Diplopoda fig. 21-2). In your comparison, focus on similarities and differences of body forms, habitats, and food resources. Why would some zoologists speculate that there was fusion of somites in millipedes? Support your response with a web site reference. 4 points.

4. Many zoologists have offered estimates of 10-15 million insect species. Yet only about one million have been identified. Explain why this is so in your own words. 1 point.

5. Make a list of five research projects that are currently being conducted in an attempt to locate and identify new species of insects. Justify why you feel that the public needs to support these projects. What benefits to humans, either current or future, do you see these projects providing? 5 points.

6. Explain in your own words the analogy of humans having different antennae for various electronic reception and insects having such a vast array of antennae styles. 1 point.

7. The tracheal system works extremely well for insects. Insects are very abundant and live in a variety of habitats. Speculate as to why this system of respiration is not more widely used in the animal kingdom. Support your response with a reference. 1 point.

8. When you have used an insecticide to eliminate insects, you have observed that the insects appear to have uncontrolled leg movements. Why? Explain the physiological mechanism that occurs when an insect and insecticide collide. 1 point.

9. Insecticides can cause problems in food chains. What are two alternatives to using insecticides? Support your response. 1 point.

10. What is the treatment for a bee or wasp sting? What causes a human to become hypersensitive to bee stings? What is a bee kit? 1 point.

11. Why are the "killer honey bees" such a threat to humans and other animals, while "regular honey bees" are not? 1 point.

12. Instead of using visual signals, some organisms use bioluminescence. Make a list of five organisms that have bioluminescence genes. Why are Wall Street and medical researchers interested in bioluminescence? 2 points.

13. In your opinion what constitutes a harmful insect. Give an example of an encounter in your life with a "harmful" insect. Give an example of how insects have caused human population levels to decrease. 2 points.


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E-mail Sylvester Allred at Syl.Allred@nau.edu


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