Answer:
Mitochondrial DNA.
Explanation:
Mitochondria is known as the power house of the cell and one of the important organelle responsible for the production of energy. Mitochondria contains its own DNA.
To understand the maternal ancestor history, the mitochondria DNA must be studied. The mitochondria is solely obtained from the mother as the egg contains large amount of cytoplasm that contains mitochondria. The mitochondria can never be inherited from paternal origin as the sperm contains few amount of cytoplasm and mitochondria.
Thus, the answer is mitochondrial DNA.
1c. More
2d. In
2a. Inward
2b. Upward
2c. Less
2d. Out of ( not so sure though try searching on google maybe )
Anyways I hope this was helpful
Babies can be born premature due to the mother smoking or drinking. Another reason could be over stressing. This has nothing to do with race, but it could possibly be a reason because black women are more likely to? Not super sure on this one, hope it helped.
Answer:
Find the explanation below.
Explanation:
A scientific question is an answerable and testable question that explains a particular aspect to a more general inquiry about nature. It is written in a manner that addresses a scientific inquiry. A scientific question has the following characteristics;
1. It is specific: A scientific question is not broad or cumbersome such that other questions are attached to it. It rather seeks the answer to a particular aspect of a broader question.
2. It is testable and replicable: This implies that to answer the question, standard scientific measures can be employed to solve it. It should also be replicable in any standard laboratory in the world using the equipment and measures specified.
3. It should be objective: This implies that the question should not be subject to personal opinions or have moral undertones to it.
4. It should solve a problem: Our world is posed with so many problems. A scientific question should provide answers to a specific part of one of these questions.
5. It is a new question that has not been satisfactorily answered before: A scientific question should not have received generally accepted scientific answers. It addresses a new problem that has not been answered previously.
