Describe what water regulation adaptations might have evolved in protists in hypertonic habitats such as great salt lake or in habitats with changing salt concentration.

The hypertonic habitats is home to saline protists which depend on salts for their survival.

Explanation:

Protists are a multicellular organism like the algae, don't from natural groups have invertebrates. They freely occupy the environment that contains liquid water. As these microorganisms cant breath in freshwaters the need the salts to sustain themselves and responsible for the production of 30% of oxygen in the water sphere. Diatoms and other oozes are some of the most beautiful protists found to date, they are also home to corals and stick to the body of seafloors. As for long, they have adapted to the same type of conditions.

Maybe a horizontal because its a pattern

Sonar is an application of the doppler effect used by submarines.  this test was on k12.