The answer is b. I am not sure exactly how to explain this, but it fits in much better with that question. I hope this could help you!
Using a molecular<span>, scientists are able to estimate the amount of time that two species have been evolving independently.</span>lecular
They come in a variety of different trees such as maple trees, pine trees, and English oak trees.
Answer:
The major blood vessels connected to your heart are the aorta, the superior vena cava, the inferior vena cava, the pulmonary artery (<em>which takes oxygen-poor blood from the heart to the lungs where it is oxygenated),</em> the pulmonary veins (which bring oxygen-rich blood from the lungs to the heart), and the coronary
