A __________ can't jump unless its tail is touching the ground.
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Frog
-
Shark
-
Monkey
-
Kangaroo
D
Correct answer
Explanation
Kangaroos cannot jump unless their tail is touching the ground because they use it for balance and leverage during their hopping motion. Their tail acts as a counterbalance and 'third leg' that helps push off. Frogs, sharks, and monkeys don't have this specific anatomical requirement for locomotion.