Related by context. Frequent words. (Click for all words.) 59 fruitflies 59 Fruit flies 58 reproduce asexually 58 flatworm 58 amphipods 57 haploid 57 nematode worms 57 protozoan 57 Toxoplasma 57 Xenopus 56 larval stages 56 coevolution 56 asexual reproduction 55 asexually 55 symbiont 55 flatworms 55 vertebrate animals 55 rotifers 55 fungal pathogen 55 mitochondrial genome 55 plant Arabidopsis thaliana 55 symbiotic bacteria 55 T. gondii 55 spirochete 55 morphologically 55 unfertilized 54 diploid 54 fruitfly 54 slime molds 54 Scientists theorize 54 Wolbachia 54 MHC genes 54 marine invertebrates 53 gut microbes 53 gamete 53 lactobacilli 53 fruiting bodies 53 humans 53 methanogens 53 protists 53 spermatozoa 53 placental mammals 53 genetic alteration 53 mutant strains 53 Volvox 53 hermaphroditic 53 Toxoplasma gondii 53 imprinted genes 53 species 53 Penicillium 53 melanogaster 53 platypuses 53 commensal 53 single celled 52 macromolecule 52 genetic variability 52 zygotes 52 Genetic modification 52 transcriptome 52 parasitic wasp 52 sticklebacks 52 predator prey relationship 52 reproductively 52 transgenes 52 Streptomyces 52 rhesus macaque monkeys 52 genotypic 52 genomic sequences 52 multicellular organisms 52 parasitic worm 52 primitive organisms 51 prokaryotes 51 genetically 51 taxa 51 vaginal secretions 51 teosinte 51 mycorrhizal fungi 51 symbionts 51 vertebrate species 51 gut microbiota 51 methylation patterns 51 Evolutionary biologists 51 organism genome 51 pancreatic tissue 51 camelids 51 mycobacteria 51 microbiota 51 Anopheles gambiae 51 Bt toxin 51 cacao tree 51 chromosomal DNA 51 hermaphrodites 51 unicellular 51 artificial chromosomes 51 insects spiders 51 cone snails 51 microevolution 51 bacterium Escherichia coli 51 phylogenetic analysis 51 ribozymes 51 lifeform