Survey of Inveterbrates Lab - different from the rest of...

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Dustin Lee Survey of Invertebrates Lab Block C: Biology Introduction: In this lab, we were paired up to observe the various invertebrate phyla. There were different stations that described the different phyla. We wrote down all the information and learned the different classifications of Porifera, Cnidaria, Platyhelminthes, Nematoda, Annaelida, Arthropoda, Mollusca, Echinodermata, and Chordata. Analysis Questions: 1. Earthworm: segmentation, 5 hearts (aortic arches), first real coelum Mussel: shell, muscular foot, radula 2. The ones that are most alike include the earthworm, mussel, and possibly the grasshopper. They are all bilaterally symmetrical, they all have a coelom and are all protosomes. Although the mussel is not segmented. The sponge is probably the most
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Unformatted text preview: different from the rest of the organisms. It is neither a protosome or a deutersome nor does it have a coelom. It also does not contain true internal organs. 3. All organisms in the animal kingdom share: a. They are all eukaryotes b. They are all heterotrophs c. They are all multicellular d. They all have a blastula stage e. They all only perform sexual reproduction Conclusion: In conclusion, all phyla are part of the kingdom animalia. They all share certain qualities, but because all animals are still very diverse, phyla are created to classify them in. Each phylum has its own individual traits. Whether it is symmetry, physical features, or internal structure, every animal is different, and yet we are still very much alike....
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This note was uploaded on 09/21/2011 for the course BIOG 1110 taught by Professor Randywayne during the Spring '09 term at Cornell University (Engineering School).

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