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Firdavs [7]
2 years ago
7

Name three pathogens that are attacked by the immune system.

Biology
1 answer:
astraxan [27]2 years ago
3 0

Answer:

viruses, bacteria, fungi, and parasites

Explanation:

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The Mitral valve which is also known as left atrioventricular prevents blood movement from left ventricle to left atrium.

Explanation:

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How many layers are there in the skin? Why do you think those layers are structured differently? Why is it important to have mul
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