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unit 3 Self quiz questions

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6 questions

  • 1. Open Ended
    30 seconds
    1 pt
    Among the characteristics unique to animals is : -gastrulation. -multicellularity. -sexual reproduction. -flagellated sperm. -heterotrophic nutrition.
  • 2. Open Ended
    30 seconds
    1 pt
    The distinction between sponges and other animal phyla is based mainly on the absence versus the presence of -a body cavity. - a complete digestive tract. -a circulatory system. - true tissues. -mesoderm.
  • 3. Open Ended
    30 seconds
    1 pt
    Which of these is a point of conflict between the phylogenetic analyses presented in Figures 32.10 and 32.11? -the monophyly of the animal kingdom - the relationship of taxa of segmented animals to taxa of nonsegmented animals - that sponges are basal animals - that chordates are deuterostomes - the monophyly of the bilaterians
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