The answer would be a because the jet stream is very cold and come down to the water like a magnet sort of and keeps the top of the water cold so there for you have a cold water current on the top of the water so the answer is )A
<span>A. Mammals use a closed, double-loop circulatory system aided by a four-chambered hearts.
The four chambered heart of a mammal is divided into two atria and two ventricles. Double-loop circulatory system is used. One loop for oxygenated blood, the other loop for deoxygenated blood.</span>
RNA has Uracil instead of thymine. it is made up of one chain instead of a double helix and it contains ribose sugar instead of deoxyribose<span>
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Es la OD porq si también es porq veian