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labwork [276]
3 years ago
9

Why do mosquito bites itch?

Biology
2 answers:
iren [92.7K]3 years ago
8 0

Answer:

Their saliva contains an anticoagulant and proteins. The proteins are foreign substances that trigger the body's immune system. To fight them the body's immune system releases histamine, a compound that helps white blood cells get to the affected area. Histamine is what causes the itchiness, inflammation, and swelling

hope i helped

Explanation:

mixas84 [53]3 years ago
7 0
Their saliva contains an anticoagulant and proteins. The proteins are foregin substances that triggers the body’s immune system. To fight them the body’s immune system releases histamine, a compound that helps white blood cells get to the affected area. Histamine is what causes the itchiness, inflammation, and swelling.
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What is caused by uneven heating and cooling at the Earth’s surface?
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Gamtetes are sex cells, for humans, this manifests as the sperm cell and the egg cell.

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3 years ago
Which 2 body systems become activated when a virus enters an animal's nasal passageway?
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D. Respiratory and immune
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3 years ago
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eimsori [14]

Answer:

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Explanation:

Hope that helps :)

7 0
3 years ago
Put these events in the correct chronological order from earliest to latest
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The following events are provided;

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D.The first appearances by the Fisk Jubilee Singers


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  • The height of the civil rights struggle in the United States was in the 1870s
  • The Great Depression occurred in 1929
  • The first appearances by the Fisk Jubilee Singers were in 1871

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3 years ago
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