Which animals do NOT display bilateral symmetry at some point in their life cycle? Select the two answers that are correct. a.) starfish b.) earthworms c.) sponges d.) jellyfish e.) flatworms Which of the following animals displays radial symmetry? a.) A worm b.) A sea anemone c.)...
Does a nematoda have a coelom? Unlike flatworms, nematodes are slender, and they are covered by a protective cuticle. ... Although nematodes do have a space in the body between the digestive tract and the body wall, it is not lined with tissue andis not considered to be a true coelom....
Diagnosis of ascariasis is based on the presence of typical eggs in the feces or adults in thedigestive tractatnecropsy. Because the ascarids reported in nonhuman primates are morphologically identical toA. lumbricoidesin humans, cross-infection from infected animals to humans is possible; however, ...
–Annelids (phylum Annelida) have: • Body segmentation, a subdivision of the body along its length into a series of repeated parts • A coelom • A complete digestive tract with –Two openings, a mouth and anus –One-way movement of food ...
(different sizes);eggsarelargerthansperm. •Gametesareproducedbymeiosis. •Atypicalanimal lifecycle: HumanLifeCycle 5.Animalshaveaperiodof embryonicdevelopment Duringembryonic development,cellsbecome specializedandformtwoor threelayersoftissues. 6.Animalcells lackcellwalls Thereforeaskeletonis necessaryto...