30 Jun LAB 10 Classification , biology homework help
Compose answers to the questions below and save the file as a backup copy in the event that a technical problem is encountered while attempting to submit the assignment. Make sure to run a spell check. You will be submitting your answers to the lab assignment in two parts. The first part of the lab assignment consists of the laboratory exercise questions. The second part of the lab assignment is the application question. The first textbox on the submission page corresponds to the first part of the lab. Be sure to paste the laboratory exercise questions, with your answers, into this textbox. The second textbox on the submission page will be for your response to the application question. NOTE: This lab assignment has questions related to binomial nomenclature. Please note that the assessment system does not accept formatted text, so you will need to indicate any italicized words by adding “IT” in parentheses after each word that is to be written in italics, (IT). For example, the common fruit fly is genus Drosphila and species melanogaster. When written, it is Drosophila melanogaster. From this example, the correct way to represent the italicized words is by typing, Drosphila (IT) melanogaster (IT). LABORATORY EXERCISE QUESTIONS 1. Record the classes for each of the following arthropods, as determined from the dichotomous key (16 points): Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism Organism 1 (Spider) 2 (Bee) 3 (Beetle) 4 (Blue crab) 5 (Crayfish) 6 (Tick) 7 (Fiddler crab) 8 (Centipede) 9 (Shrimp) 10 (Millipede) 11 (Wasp) 12 (Grasshopper) 13 (Horseshoe Crab) 14 (Mole Crab) 15 (Scorpion) 16 (Squilla) 2. Provide the family name for each shark based on the use of the dichotomous key provided (14 points): Shark 1 Shark Shark Shark Shark Shark Shark Shark Shark Shark Shark Shark Shark Shark 2 3 4 5 6 7 8 9 10 11 12 13 14 3. Submit the dichotomous key for the “imaginary” animals. (10 points) 4. When might a prepared key be used to identify biological organisms? (5 points) 5. Why are there only two choices for each step in the dichotomous key? (3 points) 6. Why are observation skills important when working with dichotomous keys? (5 points) 7. List the domain, kingdom, phylum, subphylum, class, order, family, genus, and species of humans. (9 points) a. domain b. kingdom c. phylum d. subphylum e. class f. order g. family h. genus i. species 8. What is the scientific name for humans? (4 points) 9. It is estimated that there are more than 1 million species of insects on this planet. Based on this and information gained from this laboratory, what phylum most likely comprises over 90% of the Earth’s species? Briefly justify your answer. (4 points) 10. Scorpions and spiders both belong to the same class called Arachnida. Birds and fish both belong to the phylum Chordata. Which two organisms are more closely related? Explain why. (5 points) 11. Using the evolutionary distances from the protein sequences activity (Step 4 of the procedures), fill in the diagram below. The letters should correspond with the sequence numbers (e.g., 1, 2, 3, 4, or 5). (5 points) A B C D E APPLICATION QUESTION 12. (Application) How might the information gained from this lab pertaining to taxonomy be useful to you, or how can you apply this knowledge to your everyday life as a non-scientist? The application will be graded according to the rubric below. (20 points) …
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