5 major kingdoms

• eubacteria


  unicellular with no cell nucleus, important for decomposition.
• protista


  single cell, with a cell nucleus
• fungi


  abundant in the intertidal zone
• chromista


  free floating
• metazoa


  multicellular animals in the ocean
• lower aspect ratio (caudal fins)

  quick acceleration but slow cruising
• higher aspect ratio


  slow accelartion but faster cruising.