The document contains 10 multiple choice questions about taxonomy and the classification of different organisms. It asks the reader to identify which taxonomic group certain organisms belong to based on characteristics like their body plan, cell structure, nutrition, and life cycle stages. It also tests understanding of taxonomic classifications like domain, kingdom, and characteristics used to define groups like having a coelom.

1. Taxonomy
1. Bilaterally symmetrical; deuterostomedevelopment; dorsalhollow nerve cord?
• Annelida
• Mollusca
• Arthropoda
• Echinidermata
• Chordata
2. Closed circulatory system; protostomedevelopment; many body segments?
• Annelida
• Arthropoda
• Mollusca
• Echinodermata
• Chordata
3. These organisms often have both a polyp formand a medusa formin their life
cycle.
• Echinoderms
• Annelids
• Arthropods
• Cnidarians
• Chordates
4. Which of the following groups is best characterized as being eukaryotic and
heterotrophic and having chitinous cell walls?
• Plantae
• Animalia
• Fungi
• Viruses
• Archaeabacteria

2. 5. Pharyngealslits; endoskeleton derived frommesoderm; ventral heart
• Annelida
• Mollusca
• Arthropoda
• Echinodermata
• Chordata
6. A body cavity completely surrounded by tissuederived fromthe mesoderm
that provides cushioning for internal organs is called
• An archenteron
• coelom
• A pseudocoelom
• A gastrovascular cavity
• A pharynx
7. These organisms havepharyngealgill slits and a dorsalhollow nerve cord at
some time in their development.
• Echinoderms
• Annelids
• Arthropods
• Cnidarians
• Chordates
8. Multicellular, terrestrialautotrophs with cell walls of cellulose and alternating
life cycles belong to the Kingdom
• Animalia
• Protista
• Archaea
• Plantae
• Fungi
9. Organisms with prokaryotic cells are classified in the Domain

3. • Bacteria
• Archaea
• Eukarya
• Both A and B
• A, B, and C
10. Multicellular heterotrophs that havethe diploid stage as their dominant
generation in the life cycle belong to the Kingdom
• Animalia
• Protista
• Bacteria
• Plantae
• Archaea