Answer :
C; All living things obtain energy according to what they eat.
Energy directly from its food enables a whale to move its fins in the ocean, i.e., option C.
What is the organs responsible for this?
The dolphin and whale flipper is the forelimb which is almost the same bone sets as the human hand.
The flipper is moved by similar muscles such as the biceps and triceps. Dorsal fins in whales and dolphins may lack a bony core and instead consist of fibrous connective tissue.
Energy directly from its food enables a whale to move its fins in the ocean.
Thus, the correct option is C.
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