Which of the following are adaptations of animals to aquatic habitats?

The adaptation of animals to aquatic habitats are characteristics or features that help them survive and thrive in water. Out of the options listed, the adaptation of animals to aquatic habitats includes "Gills, streamlined bodies and lateral lines." Gills are used by aquatic animals to extract oxygen from the water. Streamlined bodies reduce drag and make it easier to swim through the water, while lateral lines help animals sense movement and vibrations in the water. These adaptations are particularly useful for fish, which are the primary group of animals that have these characteristics. The other options may be adaptations of animals to other environments, but they are not specific to aquatic habitats. For example, lungs are an adaptation to life on land, while scaly skin is an adaptation to life in arid environments. Spiracles are openings on the bodies of insects that are used for breathing, but they are not adaptations to aquatic environments.