SI End of the Semester Review

Bio 211 (1)

  1. Complete the following chart:

Organism / Phylum / Class or subphylum
Jelly
Crayfish
Snail
Leech
Tapeworm
Cricket
Tick
Sea Urchin
Hydra
Planaria
Chambered nautilus
  1. Which of the following is the best description of the sponges?
  1. No real symmetry, diploblastic, cnidocytes for capturing prey
  2. Radial symmetry, triploblastic, nematocysts
  3. No real symmetry, without true tissues, choanoctyes for trapping food particles
  4. Bilateral symmetry, pseudocoel, flame bulbs for excretion
  5. Bilateral symmetry, osculum and spongocoel for filtering water
  1. Hermaphrodites
  1. Contain male and female sex organs but usually cross-fertilize
  2. Include sponges, earthworms, and most insects
  3. Are characteristically parthenogenic rotifers
  4. Are both a and b
  5. Are a, b, and c
  1. Which of the following is not true of cnidarians?
  1. An alternation of medusa and polyp stage is common in class hydrozoa
  2. They use a ring of tentacles armed with stinging cells to capture prey
  3. They include hydras, jellies, sponges, and sea anemones
  4. They have a nerve net that coordinates contraction of microfilaments for movement
  5. They have a gastrovascular cavity
  1. The exoskeleton of arthropods
  1. Functions in protection and anchorage for muscles
  2. Is composed of chitin and cellulose
  3. Is absent in millipedes and centipedes
  4. Expands at the joints when the arthropod grows
  5. Functions in respiration and movement
  1. Which of the following does not function in suspension feeding?
  1. Lophophore of ectoprocts
  2. Radula of snails
  3. Choanocytes of spones
  4. Mucus-coated gills of clams
  5. Crown of cilia of rotifers
  1. What do nematodes and arthropods have in common?
  1. They are both segmented
  2. They are both pseudocoelomates
  3. They include important members of plankton communities
  4. They both have exoskeletons and undergo ecdysis
  5. Both a and d are correct
  1. Which of the following structures is not associated with prey capture?
  1. Chaetae of earthworm
  2. Mandibles of centipedes
  3. Cnidocytes of hydra
  4. Tentacles of squid
  5. Tube feet of sea star
  1. Many animals are parasitic. Which of the following is an incorrect description of one of these parasites?
  1. Ticks are bloodsucking parasites belonging to class Arachnida.
  2. Some roundworms (Nematoda) are internal parasites of humans.
  3. Lice are wingless ectoparasites in class Insecta.
  4. Flukes are flatworms and may have complex life cycles.
  5. Tapeworms are annelids that reproduce by shedding proglottids.
  1. What are the key characteristics that distinguish the phylum echinodermata?
  1. What are the chelicerae?
  1. What are the three main parts of the molluscan body plan?
  1. Compare the feeding behaviors and activity levels of snails, clams, and squid.
  1. Sponges differ from the rest of the animals because:
  1. They are completely sessile
  2. They have radial symmetry and are suspension feeders
  3. Their simple body structure has no true tissues, and they have no symmetry
  4. They are not multicellular
  5. They have no flagellated cells
  1. What is cephalization?
  1. Complete the following chart about fungi:

Phylum / Examples / Key Features and Reproduction
Chytridiomycota
Zygomycota
Glomeromycota
Ascomycota
Basidiomycota
  1. The major difference between fungi and plants is that fungi:
  1. Have an absorptive form of nutrition
  2. Do not have a cell wall
  3. Are not eukaryotic
  4. Are multinucleate but not multicellular
  5. Reproduce by spores
  1. Chytrids have previously been classified with protists because they:
  1. Do not have chitin in their cell walls
  2. Do not have absorptive nutrition
  3. Have flagellated zoospores, whereas most fungi lack flagella
  4. Have metabolic pathways like those of protists
  5. Are aquatic and fungi are terrestrial
  1. The fact that karyogamy and meiosis do not immediately follow plasmogamy:
  1. Is necessary to create coenocytic hyphae
  2. Is characteristic of all fungi
  3. Allows fungi to reproduce asexually most often
  4. Results in heterokaryotic cells that benefit from the variation present in two genomes
  5. Is characteristic of yeasts
  1. In the ascomycota,
  1. Sexual reproduction occurs by conjugation
  2. Spores often line up in a sac in the order in which they were formed by meiosis
  3. Asexual spores form in sporangia on erect hyphae
  4. Most hyphae are dikaryotic
  5. Reproduction is always sexual
  1. Briefly define the following terms: mycelium, septa, coenocytic, heterokaryotic, plasmogamy, dikaryotic, karyogamy