What causes ocean water to be colder at the poles than at the equator

Ocean currents warmed by the Sun's energy carry heat from the equator toward the poles as well. Evaporation of surface water, rain and other precipitation, wind and ocean currents move warm air toward the poles and bring cold air toward the equator.

Explanation:

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

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