Electrical signals are relayed from the retina to the brain
Answer:
How the heart works
The heart is a large, muscular organ that pumps blood filled with oxygen and nutrients through the blood vessels to the body tissues. It's made up of:
4 chambers. The 2 upper chambers are the atria. They receive and collect blood. The 2 lower chambers are the ventricles. They pump blood to other parts of your body. Here is the process:
The right atrium receives blood from the body. This blood is low in oxygen. This is the blood from the veins.
The right ventricle pumps the blood from the right atrium into the lungs to pick up oxygen and remove carbon dioxide.
The left atrium receives blood from the lungs. This blood is rich in oxygen.
The left ventricle pumps the blood from the left atrium out to the body, supplying all organs with oxygen-rich blood.
4 valves. The 4 valves are the aortic, pulmonary, mitral, and tricuspid valves. They let blood flow forward and prevent the backward flow.
Blood vessels. These bring blood to the lungs, where oxygen enters the bloodstream, and then to the body:
The inferior and superior vena cava bring oxygen-poor blood from the body into the right atrium.
The pulmonary artery channels oxygen-poor blood from the right ventricle into the lungs, where oxygen enters the bloodstream.
The pulmonary veins bring oxygen-rich blood to the left atrium.
The aorta channels oxygen-rich blood to the body from the left ventricle
Question- What would happen if earthquake waves were to interact with layers of the Earth?
Answer- Ok this is what really happens. As you may know there are seven tectonic plates on earth. Deep in the layers of earth energy is being build up to create a movement for thease plates. When the plates move it causes earthquakes but the thing is it depends were you are. If youre far from the movement you will get a small earthquake a small earthquake meaning you wouldnt even feel it, but on the other hand if your right by the movement you will get effected. Take calafornia as an example do you wonder why there are so many earthquakes happenening it because calafornia is right on the action! Calafornia is located right at the rigget place of the tectonic plate were the movement is big!
If my answer helped you please mark it as brainliest thank you and have the best day ever!
Question was answered by Mnadat9
Answer: Cholerae is fecal contamination of water, meaning people can only get this by using or drinking the contaminated water. If a water pump has the contaminated water, boxes near that water pump will seem higher than areas with clean water.
Explanation:
Wavelengths are the distance from one crest to another crest over a wave of energy (sound, light etc.)