BIOS10117 Lecture Notes - Lecture 3: Poaceae, Monocotyledon, Plant
22 Jan 2016
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Document Summary
Groups of similar organisms found in a particular climate. Characterized by vegetation or animals that live there. Endemic species- species found only in a small geographic area. Short season of growth and reproduction: boreal forest. Low diversity- few plants: rainforest, grassland, desert, aquatic. Characterized by salinity, depth, flow, temperature, acidity, nutrients. 30,000 described species but difficult to identify all. Thermophiles- high and low temps such as boiling water. Eukaryotes- dna in multiple chromosomes in cell nucleus: plants, fungi, and animals, many single celled organisms o. Giant kelps can grow up to 100 meters long. Animal kingdom o o o single celled organisms. Annelida- worms and leeches are most abundant on planet. Sponges- reproduce asexually, sedentary, small pores, traits in common with. Symbiotic relationship with algae: algae gets nitrogen and co2 and coral gets photosynthetic ability and calcium carbonate production which builds exoskeleton. Soft bodies are supported internally by water pressure.
