Protecting from antigens using white blood cells. I’m not good at this stuff so maybe you should follow another comment
A renewable resource is a resource which can be used repeatedly and replaced naturally. Renewable energy almost never runs out, for example: solar energy is powered by heat from the sun and never runs out. Other examples include oxygen, Geothermal power, fresh water, solar energy and biomass.
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<u>PLEASE</u><u> MARK</u><u> ME</u><u> BRAINLIEST</u><u> ❤️</u><u>✌</u></h3>