2. In DNA, only the varies from one nucleotide to another.
(A) phosphate
(B) base
(C) sugar
(D) amino acid

Which of the following is not associated with invasive species?

Does any one know what blood tastes like

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species