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kramer
3 years ago
6

What is a substance that provides the host immunity by introducing a weakene (attenuated) or killed (inactive) version of a viru

s?
Biology
2 answers:
CaHeK987 [17]3 years ago
6 0
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.
nexus9112 [7]3 years ago
3 0

Answer:

Vaccines are the substance that provides immunity to the body by introducing a weak or dead virus.

Explanation:

Vaccines are not the medicines which helps in the prevention of disease in animals. Vaccine contains weak or dead microorganisms when injected in our body. Our body makes antibodies according to the structure of microbes which are injected. So whenever, the microbes enter into the body, our body is prepare for it. So the microbes cause no or less damage to the body.

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Gametes, sporophyte, gametophyte, and zygote. Explain how the terms are related.
mart [117]
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4 years ago
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Nana76 [90]

8kg of mass is that right

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3 years ago
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