Characteristics of this phylum include bundles of longitudinal muscles under the epidermal layer, but the absence of circular muscles. Along with a stiff cuticle, this limits the types of movement, so that they seem to thrash about in a random manner. Having no cilia and a pseudocoelomate body cavity, parasitic species include Onchocerca, the cause of "river blindness." Containing members like Ancylostoma and Filaria, FTP, name this phylum that i
Characteristics of this phylum include bundles of longitudinal muscles under the epidermal layer, but the absence of circular muscles. Along with a stiff cuticle, this limits the types of movement, so that they seem to thrash about in a random manner. Having no cilia and a pseudocoelomate body cavity, parasitic species include Onchocerca, the cause of "river blindness." Containing members like Ancylostoma and Filaria, FTP, name this phylum that includes pinworms, whipworms, and intestinal roundworms.
Characteristics of this phylum include bundles of longitudinal muscles under the epidermal layer, but the absence of circular muscles.
Nematoda or nematodes or Nemata (prompt on roundworms)