Nematoda Report.
Title: Nematoda Report.
Category: /Science & Technology/Chemistry
Details: Words: 208 | Pages: 1 (approximately 235 words/page)
Nematoda Report.
Category: /Science & Technology/Chemistry
Details: Words: 208 | Pages: 1 (approximately 235 words/page)
*Phylum Nematoda consists completely of Roundworms.
*Two types: parasitic and free-living. 90,000 species known; many more exist!
*These Roundworms are unsegmented; they have long, narrow, cylindrical bodies that taper to a fine tip in the posterior and a blunt end at the head. Also, they have a cuticle--a tough layer of outerskin--covering their entire bodies.
*They are pseudocoelomates. They have a pseudocoelom, an internal body space surrounding the endoderm tissue of the digestive tract and surrounded
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words, Roundworms are cooler than Flatworms].
*Longitudinal muscles; they move side-to-side in a thrash-like motion.
*Reproduce sexually. Fertilization = internal, and females deposit more than 100,000 fertilized eggs per day. Zygotes can survive harsh conditions.
*Many live in moist soil and in organic matter on the bottoms of lakes and oceans. Play an important role in decomposition and nutrient cycling.
*Closely related to phylum Rotifera; they are both VERY small (microscopic) and have a complete digestive tract.