Answer:
If you've noticed that you're often sick, feel fatigued or have other nagging symptoms you can't figure out, it may mean your immune system is weakened (OwO)
Explanation:
Your immune system can also be weakened by smoking, alcohol, and poor nutrition. AIDS. HIV, which causes AIDS, is an acquired viral infection that destroys important white blood cells and weakens the immune system. People with HIV/AIDS become seriously ill with infections that most people can fight off.
<span>Intrinsic factor is a glycoprotein principally secreted by the parietal cells of the stomach. This secretion is needed to produce mature erythrocytes. Its secretion is governed by the same biochemical processes that regulate acid secretion and its action is to assist in the absorption of vitamin B12.</span>
<h2>How would populations be impacted by climate change from increased greenhouse gases?</h2>
<h3><em><u>A)</u> Areas that experience droughts would experience increased precipitation.</em></h3>
B) There would be an increase in yield for crops from expanding drought areas.
C) Growing seasons would be altered for crops.
D) Water shortages would no longer be an issue.
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