Which word of the poem are an example of a simile

I don't know what exactly you are asking so

A simile is comparing 2 thing using "like" or "as"

Example: Her cheeks were red as a rose

the correct answer is - ability to find a mate

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides