Smin Kim: Difference between revisions

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 <br>*[https://www.youtube.com/watch?v=fGQZ5-aQK-0&feature=youtu.be Youtube link]
-[http://www.eb.tuebingen.mpg.de/research/research-groups/gaspar-jekely/phototaxis.html Phototaxis], directional swimming towards the light, is a widespread behaviour in marine plankton. About 80% of all marine invertebrates with a dispersing larval stage show positive phototaxis at the beginning of the dispersal phase. Following this positive phototactic stage, older larvae often become negatively phototactic. We study the mechanisms of both positive and negative phototaxis in Platynereis and other marine invertebrate larvae. <br>--Research Groups, Gáspár Jékely in Max planck Institute for Development Biology
+Whan a plant, animal, or insect dies, that plant, animal, or insect is broken into tiny pieces and those pieces become part of the soil.  This is called decomposition.
-<<For the first time in history, researchers at the Max Plankton Institute in the Netherlands have recorded piano music practised by a common water flea. <br>First light of the phenomenon was obtained using darkfield microscopy>>
+Bacteria, fungi, and some worms are what break down dead plants, animals, and insects.  The bacteria, fungi, and worms are called decomposers.  Decomposers need to eat some of the dead things so they can live and grow.
+The tiny pieces left over after decomposers eat become part of the soil.  Living plants take what they need from these pieces so they can grow.  The parts of these pieces that living plants take to grow are called nutrients.  So, living plants make their own food, but they also need to get nutrients from the soil.  Decomposers help provide these nutrients.
+Common decomposers in a schoolyard ecosystem are:
+    bacteria
+    fungus
+    earthworm
 ===Idea===