Since the Victorian era, categorizing the natural world has challenged scientists. No group has presented a challenge as tricky as the protists, the tiny, complex life forms that are neither plants nor animals. A new reclassification of eukaryotic life forms, published in the Journal of Eukaryotic Microbiology, draws together the latest research to clarify the current state of protist diversity and categorization, as well as the many species that remain to be discovered.
Plasmodioum: genus of Apicomplexan parasites, Family: Plasmodiidae, Order: Haemosporida, Class: Aconoidasida, Phylum: Apicomplexa, Kingdom: Chromalveolata, Domain: Eukaryota); infection by them is malaria; at least 11 species infect humans; always has 2 hosts in its life cycle: vector (usually mosquito) and a vertebrate host
SEM of hair cells (brown/ pink) in a healthy inner ear. The inner ear converts sound waves into nerve impulses by stimulation of stereocilia (pink, upper frame), projections at the ends of the hair cells. Waves entering the inner ear displace the fluid that surrounds the stereocilia, causing the stereocilia to bend. This bending causes the hair cells to release neurotransmitter chemicals, which generate nerve impulses that travel to the brain along the auditory nerve.