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Biology In Motion Online activities for learning biology, including animated cartoons, an evolution simulation laboratory.
http://www.BiologyInMotion.com/
Biology Online Online activities, labs and tutorials. Site available in Spanish.
http://www.biology-online.org/
Electronic Naturalist Information on North American animals and plants with illustrations, text, activities, and access to a naturalist.
http://www.enaturalist.org/
OceanLink Facts, in-depth articles, ask-a-scientist forum, archive of answers and newsletter on oceans and ocean life.
http://www.oceanlink.island.net/
Science Isn't Hard Interactive GCSE Biology website. Some of the topics that it covers are cells, photosynthesis, the nervous system and homeostasis.
http://www.scienceisnthard.com
The Guardians of the Millennium Describes microbiology, the rain forest and the possibility of extraterrestrial life.
http://www.theguardians.com/
The Open Door Web Site A Natural Science reference site for middle school students.
http://www.knockonthedoor.com/
