Dichotomous key for animals10/30/2023 Also, the task required a certain amount of knowledge about the animals in order to develop questions that would be appropriate for the mapping process. Often research on the animals was needed in order to develop sensible questions. For instance, Bibron’s Toadlet is not a toad, as I would have expected. Sometimes animal names do not accurately reflect the real categorisation of the animal. I learned that although the name of an animal can in most instances assist in the dichotomous key process, it is not always the case. These factors all made making the key hard but I ended up getting through the challenges. I also had trouble with this animal, as I didn’t know if it was a mammal, fish or crustacean. I later found that it is not a fish, but a Crustacean. I did not know whether it was a fish or not, and this made classifying it hard. The hardest animal to put in the key was the Murray River Crayfish because I didn’t know much about it and the picture was not very informative. I found while doing this experiment that most of the animals were relatively easy to place in the key, although for some animals further research was required at home. The number of categories or questions I used to map all the animals was 37. The map is presented as a flow chart with the more general questions on the left moving to the more detailed questions and the aligned animals on the right. I began this mapping with broader categories or groups, and worked my way through a series of yes and no questions that progressively became more specific.įor instance, the line of questioning that mapped the Platypus started with the general category ‘vertebrate’ and went through ‘mammal’, ‘monotreme’ then to the question does it ‘hunt in water?’ Through answering yes to all these topics the Platypus was identified as the only animal from the list to fit all these descriptors. Depending on whether they aligned or not, I followed through with further lines of questioning against more categories until each animal was mapped. I approached this task through a series of questioning on whether the animals did or did not align with certain categories or distinguishing features. This helped me identify the questions I wanted to pose in order to create a successful dichotomous key. To make my dichotomous key I firstly wrote down all that I knew about each animal on a piece of paper. My hypothesis is that through a series of questioning based around categories and distinguishing features, all animals can be mapped along unique paths. To create a dichotomous key that includes all selected animals and is easy to read and follow. This experiment is all about creating a dichotomous key that includes all the animals provided and writing a scientific report on it. Dichotomous key report on selected animals
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