BIO153H5 Chapter Notes - Chapter 34: Anemophily, Filter Feeder, Protostome
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Practice short answer questions for bio153 final exam 2014. These questions are for practice purposes. Please keep in mind that these questions reflect lecture material, which was different last year. List the traits that are common to both. (6 marks) Growth: incrementally in lophotrochozoans, and with shedding in ecdysozoans traits. Considering only wormlike phyla, give two examples of this pattern. Describe their feeding strategy and the adaptations to that strategy. (4 marks) Flatworms endoparasites, lost digestive tract example. Polychaete suspension feeding with mucous- lined nets, or with tentacles. Leech ectoparasite, saliva contains anesthetic. Spoon worms (echiurans) suspension feed with a spoon- shaped proboscis. Penis worms (priapulids) are predators and evert throat. Riboon worms (nemerteans) are predators and spear prey with proboscis: we have stated that fungi are ecologically important. Give the specific reason why these organisms are so important. (2 marks) Fungi provide nutrients for land plants and speed carbon.
