Fill in the blanks with the available words:


All organisms _____ (with its unique elemental composition), and all are _____ related to one another. Species _____ might defer more than others, though. We might also predict that the more similar the percentages of _____ elements are in two species, the _____ closely related those two species are.


WORDS

•evolved on earth

•less

•more

•living under unusual conditions

•trace

•genetically

•naturally occurring

•essential

•evolved on earth