Answer:
The superior vena cava and inferior vena cava are veins that return deoxygenated blood from circulation in the body and empty it into the right atrium. The pulmonary artery carries deoxygenated blood from the right ventricle into the lungs for oxygenation.
Explanation:
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A procedure which uses a catheter with an electrode in its tip to destroy the cells from which abnormal cardiac rhythms are originating is called Ablation.
Ablation therapy is used to treat some rhythm abnormalities. While cryo or freezing ablations have been used to address a number of rhythm issues, the bulk of ablations are performed using radiofrequency energy and catheter heating.
invasive intracardiac testing is necessary even though radiofrequency ablation is frequently safe and effective. The tissue is heated to a temperature of 45–100 °C using radiofrequency energy and an alternating current of 370–50 kHz. The catheter-induced lesion has dimensions of 5–6 mm in diameter and 2–3 mm in depth. To treat certain rhythm issues, like VT , a catheter with a larger tip, also known as an "irrigated tip," is used to make deeper and larger lesions.
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<u>ANSWER:</u>
Ogallala aquifer supplies "one-third of the irrigation water" in the United States.
<u>EXPLANATION:</u>
- The "Ogallala aquifer" is located in the "Great Plains of the United States" and therefore gives life to almost all fields of the US.
- The aquifer supplies water for one-third irrigation needs of the United States. The Ogallala is an underground reservoir and is very big in size and the agriculture production in the US is dependent on this aquifer.
- The aquifer is however depleting and water level in many areas has become very low.
- It is important for United States to protect and preserve this aquifer so that the agricultural production does not suffer.
B, as far as we know humans aren't from space
Given what we know, we can assume that the most likely reason why Chris did not get a rash was that the medication he is taking allowed his body extra resistance to the toxins in the river.
<h3>How does this explain why he didn't get a rash?</h3>
The most likely reason why he did not get a rash when Chris's friends did, is because Chris is taking a medication that his friends are not. This most likely doubles as an effective medication to fight off the toxins present in the river, since his friends did not take this medication, they were unable to resist said toxins.
Therefore, we can confirm that the most likely reason why Chris did not get a rash was that the medication he is taking allowed his body extra resistance to the toxins in the river.
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