D) reducing drag from the water they must swim through
The streamlined shape of dolphins, seals, and other swimming animals helps to reduce the drag that they experience as they move through the water. Drag is a type of force that acts in the opposite direction of motion, and it can significantly slow down an animal's movement through the water. By having a streamlined shape, these animals are able to minimize the amount of drag that they experience, which allows them to swim more efficiently and with less effort. This is especially important for animals that need to swim long distances or maintain a consistent speed in the water.\
D) reducing drag from the water they must swim through
The streamlined shape of dolphins, seals, and other swimming animals helps to reduce the drag that they experience as they move through the water. Drag is a type of force that acts in the opposite direction of motion, and it can significantly slow down an animal's movement through the water. By having a streamlined shape, these animals are able to minimize the amount of drag that they experience, which allows them to swim more efficiently and with less effort. This is especially important for animals that need to swim long distances or maintain a consistent speed in the water.