Related by context. Frequent words. (Click for all words.) 71 pollen 62 fungal spores 61 spores 60 pollens 56 fungi 55 organisms 53 insects 52 aphids 52 viral particles 52 leaf litter 51 organism 51 droplets 51 flowering plants 51 larvae 50 microorganism 50 microorganisms 50 stomata 49 beetles 49 diatoms 49 larva 49 nematodes 49 fungal 49 particles 49 lichens 49 spore 49 bacteria 49 secretions 49 mites 49 organelle 49 stamens 49 molecules 49 single celled 48 Wolbachia 48 bacterium 48 microbes 48 single celled organisms 48 insect 48 bacterial 48 nanotubes 47 dust particles 47 metal ions 47 vesicles 47 weed seeds 47 filaments 47 fungus 47 microscopic organisms 47 pathogen 47 clumps 47 vesicle 46 seed pods 46 parasitic worms 46 woody plants 46 aphid 46 grass pollen 46 whitefly 46 pupae 46 organic molecules 46 photosynthetic 46 Miscanthus 46 volatiles 46 nanotube 46 alga 46 mosses 46 micro organism 46 nuclei 46 TB bacteria 46 mold spores 45 tiny droplets 45 nitrogen fixation 45 wasp 45 water vapor 45 Plasmodium 45 micro organisms 45 naturally occurring bacteria 45 wasps 45 spermatozoa 45 bracts 45 cicadas 45 taxa 45 nanodiamonds 45 Spores 45 pollinators 45 insect larvae 45 yeast cells 45 sediments 45 mosquitoes 45 duckweed 45 fibrils 45 bees 44 pupa 44 microbe 44 deer ticks 44 Aphids 44 alkaloids 44 organic compounds 44 moths 44 pheromones 44 overwintering 44 bacteria fungi 44 molecule 44 fibers