http://en.wikipedia.org/wiki/Photoperiodism From Wikipedia, the free encyclopedia Photoperiodism is the physiological reaction of organisms to the length of day or night. It occurs in plants and animals. Photoperiodism can also be defined as the developmental…
http://www.bcb.uwc.ac.za/Sci_Ed/grade10/ecology/abiotic/abiot.htm Abiotic components The way in which plants and animals grow and carry out their different activities is a result of several abiotic factors. These factors are light, temperature, water,…
Elements: Earth, Water, Air, and Fire In This Issue: – Earth, Water, Air, and Fire – Make a Fire Extinguisher Science Project – Traveling Nutrients Science Project – Noteworthy Scientist:…