Answer: C. <em>Nick believes he did well on the exam because the exam was easy.</em>
Explanation:
Nick is relating his performance on the exam to an external factor (the difficulty of the exam being easy).
All the other answers are relating the exam to internal factors such as intelligence, personal knowledge, and effort.
Sunlight and humidity I believe is the answer..
People with central sleep apnea experience a complete cessation of respiratory activity for brief periods of time yet do not have frequent awakenings and do not tend to feel tired during the day.
<h3>What is sleep apnea?</h3>
Breathing regularly stops and starts during sleep, which is known as sleep apnea. People may have sleep apnea if they snore loudly and still feel exhausted after a full night's sleep.
These are the primary forms of sleep apnea:
The more prevalent type of obstructive sleep apnea happens when throat muscles relax.
Central sleep apnea, which develops when your brain fails to properly activate the breathing muscles,
When a person has both central and obstructive sleep apnea, it is known as complex sleep apnea syndrome, also called treatment-emergent sleep apnea.
To know more about sleep apnea, visit:
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I believe, for the artery, they have, an open, circular lumen an a thick media
Veins on the other hand, have somewhat collapsed lumen and a thinner media. Arteries are blood vessels that carry blood out of the heart to other parts of the body, all arteries carry oxygenated blood except the pulmonary artery which carries deoxygenated blood from the heart to the lungs. Veins carry blood from other body parts to the heart, all veins carry deoxygenated blood except the pulmonary vein which caries oxygenated blood from the lungs to the heart.