BIL 160 Lecture Notes - Lecture 10: Brown Algae, Red Algae, Cercozoa
28 Apr 2016
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Stramenphilla (straw hair: fuzzy flagellum (synapomorphy, diatoms: shells made of silica, golden algae, brown algae (kelps): beginnings of vascular tissue in more derived ones. Kelp mimicks plant, but no true roots, stems of leaves because no vascular tissue. Chlorophyll c and d: red algae (pigments that absorb blue, water molds. Haptophytes: little algae with little shells/ coccoliths/ raw material of structures. Rhizaria: amoebas, secrete ornate shells where pseudopods form which add surface area. (radiolarians: cercozoa: are everywhere, forminifera: calcium carbonate shells, radiolaria: silica shells, more common in cold water. Archaeplastida: red algae and green plants: rhodophyta (have things that are found in cyanobacteria), light collection system. Uniconts: amoebozoa: closely related amoebas, specifically to entamoebas, slime molds: phylogenetic mess, choanoflagellates: closest relations, colonial (one step towards multicellular) Cladogram: two called porifera/sponges, earliest of what animals looked like (calcareous, siliceous), no true tissues/planes of symmetry, metazoa (animals), eumetazoa (true animals, radiata (radial symmetry, bilateria (mirror images, plane of symmetry)
