However, if a child's medical condition is attention deficit hyperactivity disorder (ADHD) and, although diagnosed by a doctor, the child attends a school for the musically talented--with only a general program to address the challenges of ADHD--chances are the IRS will challenge the tuition's deductibility.
Monerans are the most primitive kingdom. Monerans are all prokaryote and are all single-celled! Protists are also single celled (according to a growing consensus) and are all eukaryote. Image from W.H. Freeman and Sinauer Associates, used by permission.
Extreme Halophiles. Our present knowledge divides living beings into three categories, the. prokaryotes (bacteria whose cells have no nuclei), the eukaryotes (bacteria and all. higher organisms whose cells have nuclei), and archaebacteria (primitive bacterial. organisms). The latter are distinguished by their mitochondrial RNA sequences, by.