its trunk
detect smell
gills
fish
That would be their wings
Squid have some important adaptations that allow it to survive. Some of these would be its ability to squirt ink at predators. Also the long tentacles allow it to swim fairly quickly in water.
eyespot
Blubber
Viper snakes have structural adaptations such as heat-sensitive pits near their eyes that help them detect prey, long hollow fangs for injecting venom, and a hinged pair of fangs that fold back when not in use. They also have highly flexible jaws that allow them to swallow large prey whole.
Phytochrome is the photoreceptor that allows plants to detect day length.
Very light bodies.
Structural and Behavioral