Could not find any links for specified country. Please check back later. Xylem is the world leader in tough, portable and reliable pumps for multiple applications. Our broad product range in combined with extensive application experience ensure the right solution that meets your specific needs. Submersible pumps can handle small drainage jobs to larger dewatering projects.
An obligate parasite, or holoparasite, is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. If an obligate parasite cannot obtain a host it will fail to reproduce.
A parasite is a life form that survives off its host â taking valuable nutrients without contributing to the benefit of the host. Human parasites include worms, bacteria, protozoa and amoeba.Parasites often work by stealth. parasite is a life form that survives off its host â taking valuable nutrients without contributing to the benefit of the host. Human parasites include worms, bacteria, protozoa and amoeba.