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When exposure to a pathogen identical to one that has been encountered previously occurs again, the immune system recognizes the pathogen and acts quickly based upon:
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What is an endocrine function? (apex) a. esophageal glands release mucus into the esophagus b. salivary glands release saliva into mouth c. swear glands release sweat to the skin d. the pineal gland releases melatonin into the bloodstream
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Biology, 22.06.2019 12:30, DisneyyKayy
Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear
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When exposure to a pathogen identical to one that has been encountered previously occurs again, the...
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