Concept:The crocodile’s body parts are adapted for breathing, watching, and swimming while mostly under water.
Explanation:Part I is the nostril, which is placed on top of the snout.
This allows the crocodile to breathe while the rest of the body is submerged.
Part II is the raised eye, which helps it see above water without exposing the whole head.
Part V is the strong, flat tail used for swimming and moving under water.
These three parts work together to let the crocodile stay under water most of the time.
Parts III and IV are less important for this ability.
Answer:B. I, II and V