Classification of Species Hands-On Labs, Inc. Version 42-0044-00-02 Lab Report


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Classification of Species Hands-On Labs, Inc. Version 42-0044-00-02 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Exercise 1: Identifying Dragonflies to Family Data Table 1. Dragonfly Identification. Unknown Dragonfly Family Description #1 #2 #3 #4 #5 #6 #7 #8 #9 # 10 Questions A. What is a dichotomous key? How does a dichotomous key work? B. List the features that are used to classify dragonflies to the family level. C. Were there any families in the dichotomous key that were not represented among the 10 unknown dragonflies? If so, list each family and a description of its key characteristics. D. Use the Internet to research a species of dragonfly belonging to one of the families in the dichotomous key. List the common name and scientific name. Denote the classification at each taxonomic level. For example, the swamp darner has the scientific name Epiaeschna heros and it belongs to the following taxonomic ranks: domain Eukarya; kingdom Animalia; phylum Arthropoda; class Insecta; order Odonata; family Aeshnidae; genus Epiaschna; species heros. E. Describe the feeding, reproduction, and any other life habits of interest for your selected dragonfly species. Exercise 2: Creating a Dichotomous Key Data Table 2. Descriptions of Leaf Types. Leaf type Oak Basswood Elm Chestnut Maple Locust Ash Pecan Description Data Table 3. Dichotomous Key to Leaves. Step 1.a. 1.b. 2.a. 2.b. 3.a. 3.b. 4.a. 4.b. 5.a. 5.b. 6.a. 6.b. 7.a. 7.b. 8.a. 8.b. 9.a. 9.b. 10.a. 10.b. Description Instruction (such as, “Go to 2”) or Leaf Name (for example, Maple) Questions A. List the features used to classify leaf types. B. List some characteristics that are shared among all of the leaves. Why are shared characteristics not included in the dichotomous key? C. Why would color not necessarily be used to identify leaves in nature? Read more

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