Someone help please.

What could happen if two base pairs on a strand of dna or switched

Ineed with a hypothesis my question is can seeds sprout in different locations?

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food