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
I'm pretty sure the answer is C
Answer:
the answer is c bc i got it wrong on usatestprep bc i picked d and it was c
Explanation:
<h2><em><u>
Answer:</u></em></h2>
The five steps that are always taken in scientific research are;
- establishing a hypothesis
- doing research and assembling data
- and finally proceeding to a conclusion
<h2><em><u>
Explanation:</u></em></h2>
- Arya already performs the first two steps; as she first recognize the problem i.e. she observes the dry glass and she also formulate a hypothesis that "the water content in the soil is about two-thirds lower than that of other yards in the area"
- Now she will collect the data and conduct the experiment on the soil and glass and then she will assemble the conclusion based on the results.Now she will collect the data and conduct the experiment on the soil and glass and then she will assemble the conclusion based on the results.
I would say B: A bar graph.
definitely not c or d