<span>nerve cells need b 12 for proper functioning</span>
Answer:
B--- pay careful attention to what you are observing.
Explanation:
When you go to fast when making observations, you can mess up. When you take your time and pay careful attention when making observations, there is a chance you could mess up, but it is very slim.
Answer:
Plain Tap Water
Explanation:
You should find that plain tap water produces a much larger, stable drop of water on top of the penny than the soapy water does. This is because plain tap water has higher surface tension, so the surface is "stronger" and can hold together a larger drop.
Aorta to: arteries, capillaries, venules, veins, superior/inferior Vena Cavae, to Right atrium of the heart, through the tricuspid valve(or called the right AV valve) into the Right ventricle, then pushed through the Pulmonary valve into the Pulmonary trunk and then off into the Pulmonary-Arteries ( to the lungs), then to Pulmonary arteries( which bring blood back to the heart), then into the Left atrium through the Mitral valve into the Left Ventricle, which pushes blood through the Aortic Valve then back to the Aorta!
There is your detailed answer in order! :) yay!!
Just imagine the process in your head. Once you trace it with your mind it is easy to follow!
Good luck and I hope I helped.
