Answer
1.Streamlined body shape.
2.Loss of hind limbs.
3.Modification of forelimbs.
4.Development of a tail fluke.
5.Increased lung capacity.
6.Enhanced echolocation abilities.
Work Step by Step
Some of the major adaptations that allowed whales to become fully aquatic include:
1.Streamlined body shape: Whales have a streamlined body shape that reduces drag and allows for efficient movement through the water.
2.Loss of hind limbs: Over time, whales lost their hind limbs entirely, which reduced drag and allowed for more efficient swimming.
3.Modification of forelimbs: The forelimbs of whales have been modified into flippers, which are used for steering and propulsion through the water.
4.Development of a tail fluke: The tail fluke of whales is horizontally oriented and moves up and down, providing propulsion and allowing for efficient swimming.
5.Increased lung capacity: Whales have an increased lung capacity, which allows them to hold their breath for longer periods of time while diving.
6.Enhanced echolocation abilities: Many species of whales use echolocation to navigate and find prey in the dark, murky waters of the ocean.
