Which of the following is always a component of allergies?
Out of all the answers shown above the one that best represents the one that is always a component of allergies is answer choice A) histamine.
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Answer: A
Explanation: The blood–air barrier (alveolar–capillary barrier or membrane) exists in the gas exchanging region of the lungs. It exists to prevent air bubbles from forming in the blood, and from blood entering the alveoli. ... The barrier is permeable to molecular oxygen, carbon dioxide, carbon monoxide and many other gases.
Yes people can get HIV without having full blown aids
Answer:
While moderate amounts of alcohol may cause blood sugar to rise, excess alcohol can actually decrease your blood sugar level -- sometimes causing it to drop into dangerous levels, especially for people with type 1 diabetes.
Explanation:
Answer:
You would last <em>3 days</em> with appendicitis symptoms.
- Appendicitis causes severe abdomen pain.
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