query: Why did multicellular organisms evolve when a single cell can survive on its own?
positive_passages.docid: 63202
positive_passages.text: Why would a single celled organism evolve to be multi-celled?
negative_passages.docid: 29075
negative_passages.text: Virus cannot survive on surface after certain time period, but why and how?
negative_passages.docid: 121679
negative_passages.text: How much variation is there between DNA molecules from the same organism
negative_passages.docid: 117194
negative_passages.text: The simplest organism that can learn?
negative_passages.docid: 99614
negative_passages.text: About embryonic and genetic evidence of evolution?
negative_passages.docid: 147211
negative_passages.text: Why are not all species hermaphrodites?
negative_passages.docid: 139773
negative_passages.text: Evolution of dominance of alleles
negative_passages.docid: 57252
negative_passages.text: Ecological tale of a world covered by a forest that is all one organism
negative_passages.docid: 81118
negative_passages.text: Intelligent cells taking over the world
negative_passages.docid: 72513
negative_passages.text: Viruses: Adaptation to a new host through repeated host jumps
negative_passages.docid: 122185
negative_passages.text: Why are there no organisms with metal body parts, like weapons, bones, and armour? (Or are there?)
negative_passages.docid: 108019
negative_passages.text: Why, specifically, does each generation, on average, improve upon the design of the species rather than degrade it?
negative_passages.docid: 141729
negative_passages.text: Why does evolution not make our life longer?
negative_passages.docid: 69401
negative_passages.text: Short SciFi story where humans join and evolve into a kind of multi-creature
negative_passages.docid: 15250
negative_passages.text: Why do some bad traits evolve, and good ones don't?
negative_passages.docid: 5454
negative_passages.text: Does our DNA change during our lives?
negative_passages.docid: 127416
negative_passages.text: Why did the process of sleep evolve in many animals? What is its evolutionary advantage?