B1 Biology revision test 2.0 / 5 based on 1 rating ? BiologyGCSEEdexcel Created by: JoshCreated on: 17-04-13 14:56 What is the definition of speciation? It is the evolution of a new species due to geographical isoation that can no longer interbreed with the original species 1 of 5 What does the genetic disorder cystic fibrosis cause? It causes the lungs and and some tubes that carry enyzmes to the intestines to be clogged with mucus 2 of 5 What is the definition of a drug? A chemical substance that affects bodily functions 3 of 5 What is the order of classification? Kingdom, Phylum, Class, Order, Family, Genus, Species 4 of 5 What is the difference between continuous and discontunious variations? Continuous variations are numerical (e.g. height) and discontinuous are variations such as eye colour 5 of 5
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