A scientist is working with methane (CH4) and butane (C4H10). Which statement best compares these chemicals

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

What nerve is affected in bell palsy

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