<span>B cells recognize their specific antigen on the surface of the invading pathogen or recognize toxins secreted by pathogens. Then, some B cells clone into memory B cells, while others multiply as plasma cells, which generate antibodies that bind to pathogens and block them from entering your healthy cells.</span>
Answer:
<u><em>Digestion</em></u>
Explanation:
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<span>b. They release oxygen that organisms use to breathe.</span>
Foods that are high in calcium include dairy products, dark leafy greens, fish, and enriched grains.
Your answer is d. delayed puberty
