What type of natural selection is this? Scientists noticed that birds with smaller beaks struggled to eat the large seeds and often gave up. Based on the data provided, is there evidence to demonstrate the beak depth is a product of natural selection?

amber has allowed scientists to study dna that has been preserved over millions of years.

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