Answer:
b) from a region of high pressure to a region of low pressure
Explanation:
Blood flow is measured in blood volume per unit time. It is the movement of blood through an organ, tissue or vessel. It is initiated when ventricles in heart contract leading to its ejection at high pressure. Major arteries receive this blood and they further transport it at high pressure to smaller arteries, arterioles and capillaries. Hence arteries have thick walls to withstand this pressure. The pressure decreases when blood reaches to veins hence their walls are not that thick. Hence, blood flows from a region of high pressure to a region of low pressure.
Covalent bonds are formed when two non metal atoms share an electron. The atoms either give up or gain an electron, due to the outer shell being unstable.
Answer:
The air
Explanation:
the air has a component of 79% of nitrogen gas (N2)
To identify how your experiment represents the carbon cycle analyze how each Earth's sphere participates in the cycle and relate it to the experiment.
<h3>What is the carbon cycle?</h3>
This is a natural phenomenon on Earth in which carbon circulates through different spheres.
<h3>What is the role of each sphere?</h3>
- Atmosphere: Contains gaseous carbon as carbon dioxide.
- Biosphere: Plants use carbon and release oxygen; on the other hand, animals produce carbon as a result of the breathing process.
- Geosphere: Contains carbon, which is the result of processes such as organisms' decay.
- Hydrosphere: Contains dissolved carbon.
<h3>How do you relate the experiment to the natural process?</h3>
- Identify the components of your experiment and the way they interact with carbon.
- Compare this function to the function of the speheres.
- Relate the experiment and natural model.
Note: This question is incomplete because there is not information about the experiment; due to this, the answer is based on general knowledge.
Learn more about carbon cycle in: brainly.com/question/1627609
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