Aquatic organisms have developed streamlined shapes to adapt to the

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The viscosity of water (resistance to flow) is high compared to air, so aquatic organisms have developed streamlined shapes to reduce drag and increase their ability to move efficiently through the water. This is why fish, dolphins, sharks, and other aquatic animals have long, tapered bodies with fins or flippers to help them move through the water with minimal resistance. The density of water (which affects buoyancy) and the polar nature of water (which affects chemical interactions) may also play a role in the adaptations of aquatic organisms, but they are not the primary reason for their streamlined shapes. The basic nature of water (being a liquid) is not relevant to this question.

Aquatic Organisms Have Developed Streamlined Shapes to Adapt to the