Answer
Scientists studied the genomes of more than 1200 indigenous African living in the southern part of the continent today , they pieced together a history of one of the oldest DNA's . Which is passed down maternally through the mitochondria and has survived remarkably unchanged in some populations for hundreds of thousands of years.
Explanation:
Answer:
You can not see them with the bare eye, but you can see them using a very powerful microscope.
Explanation:
question one is actually mass, and question 2 is D.
