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Biology Chapter 9 Discussion questions

Biology Chapter 9 Discussion questions - allowing for...

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Drew Rasmussen Biology 192 Lab Matt Schmasow March 16, 2011 Chapter 9 1. What are the differences between Phylum Platyhelminthes and Phylum Nematoda? 2. What does hermaphroditic mean? 3. Nematodes are one of the most diverse groups of organisms on the planet. How many species could be found in one rotting apple? Name one human disease caused by a nematode. 4. What do the male organs of earthworms consist of? The female organs? 1. Phylum Platyhelminthes contains flatworms and Phylum Nematoda contains roundworms. A big difference between these two phyla is the body cavity, and the process of movement. In Phylum Platyhelminthes the endoderm lies within the mesoderm, and in Phylum Nematoda, the endoderm is surrounded by a fluid filled cavity
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Unformatted text preview: allowing for organs to be protected. 2. Hermaphroditic is a term that basically means containing both male and female parts. Hermaphroditic animals can play the role as a male or female in sexual reproduction. 3. A single decaying apple could contain up to 90,000 different roundworms from various species. The disease trichinosis is caused by nematodes. 4. The male organs consist of a cuticle, longitudinal muscle, pseudocoelom, intestines, and testes. The female organs include: Intestines, cuticle, longitudinal muscle, pseudocoelom, uterus, ovary, and oviduct....
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