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offers scientific articles and lessons. Topics include the value of a garden, plant genebanks, bacteria (friend or foe?), biodiversity, real-life aliens (introduced species), apes, ecosystems, global warming, forest canopies, deforestation, water, genetic research, biotechnology, genetically modified foods, ancestry of modern people, microbes, evolution, DNA, how new species form, extinction, and more. Articles and lessons are correlated with academic standards. (American Institute of Biological Sciences, National Science Foundation)
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Humans are 99.9% identical -- only .1% of our genetic makeup differs. The DNA sequences from two individuals of the same species are highly similar, differing by only about one nucleotide in 1,000 or about 3 million base pairs. This .1% difference in genetic makeup is responsible for us having different eye colors, hair colors, shapes and sizes. |
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Animal cell mitosis |
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