Answer:
A. Genetic changes among and within populations
Explanation:
Macro evolution is the theory that animals evolved over time into new species while micro evolution is more minute changes within a species, like a genetic mutation to help the species adapt to their environment. An example would be of a genetic mutation in the fur color of bears to make different types of bears like black bears, brown bears, polar bears, etc
1.D
2.D ( because less species don’t want to over populate lack of food )
The RED TAILED HAWK is the bird that has a synonymous cry with the bald eagle. It is often associated with the same sounds that a bald eagle makes and is often times misconstrued as the real bald eagle of America. These are birds that are known as the "chickenhawk" because it preys mostly on smaller species of birds like chickens. It is one of the most common bird species found in North America.