Why can sea creatures live just as easily in fresh water as they can in salt water?
A; This is an interesting question, but the truth is, sea creatures can’t live as easily in fresh water as they can in salt water. There are a lot of problems associated with living in fresh water, and many sea creatures do not have the right adaptations to live there. Fresh water generally does not provide a constant environment to live in, because water levels change seasonally, as do salt and temperature levels. Far fewer organisms live in fresh water than in the sea, which means that there is less food available in fresh water. Another problem with switching from a salt water to fresh water environment is that many organisms simply diffuse water and nutrients through their bodies, and do not have specialized compartments for digestive and circulatory systems (for example, jelly fish and sea anemones). The concentration of salt and other biological chemicals are perfectly balanced in the cells of the sea organisms and in the water, which allows them to maintain a salt and fluid bala
