The larvae of the gooseneck barnacle and brine shrimp display similar morphological features despite differences observed in the adult forms. the similarities present in the larval forms suggests that:

The answer to the question on the larvae of the gooseneck barnacle and brine shrimp display similar morphological features despite differences observed in the adult forms,  the similarities present in the larval forms suggests that the similarities among embryos can actually infer the relationships between the species.

It allows water to resist freezing and thawing cycle.