What region of the world appears to have the greatest concentration of autocratic regimes quizlit?

What is the difference between how ionic and covalent bonds form

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.