A scientist is analyzing tissue samples from an Asian elephant and an extinct woolly mammoth. When he sequences their DNA, he finds the genetic information of these animals to be about 99% identical, but not exactly the same. Can this information be used as evidence for evolution?

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers