Answer:
structure A is called the Cristae
<span>Biologists who work in the fields of genomics and molecular biology study DNA genome content and analyze genetics on a molecular level. They do it to map DNA and use it to prevent diseases or anything similar.</span>
Answer:
The spill affected 70,000 sq mi (180,000 km 2) of the ocean.
Explanation:
Area: 2,500 to 68,000 sq mi (6,500 to 176,100 km²)