1. What is the flower sex of the Sparganiaceae and Typhaceae? 2. How do these two families differ? 3. For the Ceratophyllaceae name the plant habitat, plant habit, leaf arrangement and morphology, and economic importance. 4. Select a family of angiosperms treated in this chapter and learn everything you can about it. Perform a literature search (e.g., family name + “systematics”) on journal articles published in the last 5 years. Consult family descriptions, recent data on phylogenetic relationships, and information on intrafamilial groupings