Lab_8 Echinodermata & Chordata

Lab_8 Echinodermata & Chordata - Lab 8Phyla...

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1 Lab 8—Phyla Echinodermata and Chordata This lab goes into depth regarding two deuterostome phyla, the Echinodermata and Chordata. You’ve seen the Chordata before way back in Lab 3, but our discussion was limited to the subphylum Vertebrata. In this next lab you will look at two additional subphyla within the Chordata and have a bit of a review of the Vertebrata. As with other labs dealing with two phyla, this lab is broken into two basic sections: Section 1—Echinodermata and Section 2—Chordata. These organisms are deuterostomes. Recall that their developmental patterns are different than that found in the protostomes. Echinodermata—Within the echinoderms there are five classes to know. Recall that the echinoderms have a particular type of radial symmetry—pentaradial symmetry. This is evident when one looks at the number of ambulacral regions (the area between the tube feet) present. There will be five. The echinoderms also possess a calcareous endoskeleton
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Lab_8 Echinodermata & Chordata - Lab 8Phyla...

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