1. Free-living communities and alimentary tract helminths: hypotheses and pattern analysis - D Simberloff.

2. Both free-living and parasitic phases of the life cycle are similar to those of the bovine species.

3. The free-living and parasitic stages are similar to those of Ostertagia.

4. How small can a free-living organism be?

5. Billions of years ago, free-living bacteria are thought to have become incorporated into living cells as energy-providing mitochondria.

6. "The ancestors of the mitochondria were once free-living bacteria, " Martin says.

7. In recent years, free-living party militants often mountainous border with Iran in the military conflict.

8. The person with this kind of free-living state is my model.

9. Methods Free-living amoebae were incubated on the agaric solid medium which had been covered with Escherichia coli in control group.

10. In effect, free-living nitrogen-fixing organisms are in situ green manures since most N derived from BNF is released to the soil solution only after cell death.

11. Each egg hatches and releases a microscopic free-living larva called a miracidium.

12. The earliest living organisms – single, free-living cells – could have depended for their existence on structures that were very simple compared with the highly evolved structures we see today.

13. The isolation and culture of pathogenic free-living amoebae are useful in the diagnosis and research.

14. Results In the control group(), free-living amoebae were all in the form of trophozoite.

15. Even terms such as wildlife are dismissed as insulting to the animals concerned – who should instead be known as "free-living", the academics including an Oxford professor suggest.

16. Strongyloides is unique among the nematodes of veterinary importance being capable of both parasitic and free-living reproductive cycles.

17. Systematic review of dietary intervention trials to lower blood total cholesterol in free-living subjects.

18. A different type of biologically engineered pest control is claimed to have been effected through a free-living soil bacteria.

19. Our results would help approach to taxonomical and ecological studies of free-living marine nematode.

20. "We tried to disentangle the 'genetic link' and the 'exposure' hypothesis in free-living feral pigeons Columba livia,[sentencedict .com] " Ms Jacquin reported.

21. These bacteria survive within or between the cells as parasites of free-living protozoa and within biofilms which develop in water systems where bacteria survive.

22. Just as animals get buried in rock, these viruses become trapped in the genomes of their hosts. While their free-living relatives continue to evolve, fossil viruses are effectively frozen in time.

23. This review focuses on the methods of isolation and cultivation of pathogenic free-living amoebae, including sample treatment, culture conditions, passage culture, pathogen detection, and maintenance.

24. By assessing the colouration and state of health of 195 free-living urban pigeons, they found that darker pigeons had lower concentrations of a blood parasite called haemosporidian.

25. Co-ordination: long lateral cords are the main component of the nervous system. Cerebral ganglia are present in free-living worms.

26. Conclusion In the circumstance of nutritional stress, amoebic trophozoites were induced to transform to cysts gradually. The autophagic ability of free-living amoeba significantly enhanced.

27. In our own work, they have been valuable because free-living sick and dead red kites can be quickly detected, and health and post-mortem examinations carried out within a short period.

28. Reproduction: gonads are aggregations of developing gametes. Fertilization is external, producing free-living planula larvae. Asexual budding is common.

29. However, because of the overwhelming numbers and the difficulty of species identification, there are nearly no previous studies about free-living nematodes.