Marine iguanas expel the saltwater they ingest by ….

A Sweating
B Sneezing
C Vomiting

Correct Answer: Sneezing

Fact: As marine iguanas dive into the ocean to graze on algae, they consume seawater, which contains high levels of salt. To manage this, they have specialized nasal glands that filter out excess salt. They expel it by sneezing, an adaptation that helps them to thrive in their saline environment without suffering the effects of too much salt in their system.