These circular DNA molecules are called C: Plasmids
top left geosphere. top right biosphere. bottom left hydrosphere. bottom right atmosphere
It determines the specific isotope of an element.
Answer:
In order for a bird's beak to evolve into different a types, a mutation must occur first.
Explanation:
All evolution relies on mutations or changes to the DNA. Bird beaks adapt to the environment to be better suited to obtain food. A bird that used to have a pointy beak for stabbing bugs might move to an area with an abundance of seeds. Their DNA mutates so that their offspring can have short beaks to pick up seeds.
