BIOL 243 Lecture Notes - Lecture 1: Wuchereria Bancrofti, Planaria, Nephridiopore
22 Jan 2015
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Complete your hydra assignment (refer to the lab 1 manual for details). Identify the characteristics that distinguish phyla platyhelminthes, nematoda and. In particular, focus on the characteristics relating to body cavity, segmentation and mode of feeding. When viewing slides and other materials in the lab, reference to a photographic atlas will be very helpful. Think about the advances seen in these groups, keeping environmental selective forces in mind. In groups, work through and present responses to the discussion topics. Determine specimen dissection assignments for next week"s lab. Read over the information in this lab manual so that you will be prepared to write a quiz in lab. We now move on from the lower metazoans to a group of organisms collectively known as worms, i. e. , animals that are generally long and thin. Worms are bilaterally symmetrical, which is reflective of an active, motile lifestyle.
