Amoebozaons Stramenopiles Alveolates Rhizarians Excavata A. have a tinsel flagellum and are photosynthetic. B. have elaborate tests composed of calcium carbonate, silicon, or strontium salts. Members have thin pseudopodia that project from the test. C. have a feeding groove on one side and are usually single-celled. Members include organisms with heterotrophic, photosynthetic, parasitic, or symbiotic lifestyles. D. have membrane-enclosed sacs beneath the plasma membrane. There are photosynthetic and heterotrophic members in this group. E. use pseudopodia to move and may be either single-celled or multicellular. Members within this group exhibit free-living and parasitic lifestyles. F. have a cell wall and both an outer and an inner membrane. There are no membraneous organelles in this group.