How will you interpret those pairs of organisms having the exact amino acid sequence of chromosome-c?

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures