The Jason Project has asked you to construct a diagram that will graphically illustrate the relationships between six new critters they discovered in the Rain Forest. How do you do that? What are the steps you should take?
Before actually working with the critters themselves, it might be a good idea to practice with something else. Let's pretend these geometric shapes are critters:
The first thing we need to do is identify our critters. Scientists use a system called "binomial nomenclature" to assign a two-part, latinized name to living things. Humans, for instance, are Homo sapiens. We don't need to be that fancy with the geometric shapes. We can use numbers, letters, or names to identify the shapes.
In comparing cats and dogs, for instance, a character might be "claws;" the two character states might be "retractable" and "non-retractable." Other characters might be "tail," with character states like "curly," "straight," "short," "long." Look at all the geometric shapes. How are they the same? How are they different? What characters and character states can you come up with for the geometric shapes?
|Character States for 'Color':||
Can you come up with more characters, and the character states for those characters? Once you think that you are done, you can go on to How to build a cladogram.
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