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Sweat glands are abundant on the pinna of
Sweat glands are abundant on the pinna of
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Solution
The correct option is D Hippopotamus.
Hippopotamus are adapted for life in water and are found living in slow-moving rivers and lakes. They have unique skin that needs to be kept wet for a good part of the day. Staying out of the water for too long can lead to dehydration, so they try to remain in water during the day. They rely on water or mud to keep their body cool. They don't have true sweat glands all over their body, instead, they are found abundantly on the pinna (external ear).
Hippopotamus are adapted for life in water and are found living in slow-moving rivers and lakes. They have unique skin that needs to be kept wet for a good part of the day. Staying out of the water for too long can lead to dehydration, so they try to remain in water during the day. They rely on water or mud to keep their body cool. They don't have true sweat glands all over their body, instead, they are found abundantly on the pinna (external ear).
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