The animals in salt marshes use the marshes for
a. breeding grounds
b. nurseries
c. protected habitats
d. all of the above

The correct answer is D. All of the above

Explanation:

Salt exist worldwide and are commonly found in estuaries. Many animals depend on salt marshes for their survival.

Salt marshes provide critical nurseries for many fishes like winter flounder that comes in marsh water and about 70% of commercially available fish use salt marshes at some point in their life.

Salt marshes are one of the most nutrient-rich ecosystem so it provides a breeding ground for many animal species like fishes, shellfish, crabs, etc. Animals in salt marshes like crabs depend on this ecosystem to get protection from predators. So the right answer is D.

the index of refraction of the second medium is higher. i just took the test trust me !

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.