Pathogens is the answer.
Active immunity is the body's continuing to immune and defend against
pathogen. A pathogen can be defined in
terms of its characteristics to create toxins, enter tissue, colonize, hijack
nutrients, and its ability to immunosuppress the host. There are types of pathogens;
two of them are bacterial and viral.
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It’s because plant cells have a cell wall and animal cells don’t
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Explanation:
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The answer is true: Visible light has very short wavelength
