Friday, September 30, 2011

Topic 5.5 - Working with Dichotomous Keys

Today we reviewed bionomial nomenclature, the seven levels of taxa and how to distinguish between the four main phyla of plants.

Since the link on the blog for your assignment yesterday was broken, we discussed how to distinguish between the following phyla of animals: porifera, cnidaria, platyhelminthes, annelida, mollusca and arthropoda.

We spent the bulk of the class period learning about dichotomous keys, starting with making a key for the students in the class.  Next students practiced identifying various leaves using a dichotomous key.  This will be a skill that we use on academic travel to identify the organisms in the pitfall traps and that we collect from kick netting.











On Monday/Tuesday we will wrap up the tree identification activity and you will create your own dichotomous key for eight organisms.

Lastly, here's a final reminder about the DBQ on page 201 that is due Monday October 3rd for E period (or October 4th for H period).



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