Acertain species of butterfly varies in color from white to dark blue. the birds found in the same area feed on the white or lightly colored butterflies, leaving butterflies that are darkly colored. this may result in what type of selection?

Directional selections

Explanation:

Directional selections occur when a certain phenotype is favored by the environment, reproductive preferences or other situations that favor a certain characteristic make the dna of a certain species to shift into that direction, in this case the lighter coloured butterflies are eaten by the birds, so eventually more and more dark butterflies will start to born because of this.

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus