4. What characteristic is unique to squids compared to other mollusks? A) Hard shells B) Ability to fly C) Ink production D) Photosynthesis 5. Which of the following environments is not typically inhabited by squids? A) Deep sea B) Freshwater lakes C) Shallow coastal waters D) Open ocean

4. C) Ink production<br /><br />Squids are unique among mollusks in their ability to produce ink as a defense mechanism. This ink helps them escape predators by creating a cloud that obscures their movement.<br /><br />5. B) Freshwater lakes<br /><br />Squids are marine animals and are typically found in saltwater environments such as the deep sea, shallow coastal waters, and the open ocean. They are not found in freshwater lakes.