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.
T. pallidum is an obligate internal parasite, meaning that it requires a mammalian host for survival. In the absence of mammalian cells, T. pallidum will be killed by the absence of nutrients, exposure to oxygen and heat.(1) T. pallidum causes the human disease syphilis.. pallidum is an obligate internal parasite, meaning that it requires a mammalian host for survival. In the absence of mammalian cells, T. pallidum will be killed by the absence of nutrients, exposure to oxygen and heat.