Fish living in Salt water must take in water by drinking from the environment. They also must excrete a very concentrated urine, releasing as little water as possible. Fresh water fish have the opposite problem. They excrete large amounts of very dilute urine, and take in very little water by drinking. Explain this in terms of osmosis, and a consideration of which fish is hypertonic & which is hypotonic relative to its environment.
2007-03-20 13:47:44 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The fish in freshwater is hypertonic compared to its environment. Their membranes have to work hard to pump water out that so desperately wants to get in due to osmosis.
The fish in saltwater is hypotonic compared to its environment. The water in their bodies would like to flow to the hyperosmolar environment around them and they have to do what they can to conserve it.
2007-03-20 14:29:17 · answer #1 · answered by Tiffany 3 · 0⤊ 0⤋
Biology is the learn of existence in the international as we talk by using remark. The learn of the origins of existence is a "historic" self-discipline, no longer a medical self-discipline, which is composed of ideals (in unseen events) and axioms (uncomplicated unprovable assumptions). the thought of evolution is consequently similar to a philosophy or faith because it tries to respond to the question of origins from its atheistic axiom. severe questioning is something which would be progressed by using interplay on a blog like this. you will discover the main suitable arguments, and notice people who use fallacies of their responses. that's was hoping that we can consequently help one yet another in direction of the reality approximately this maximum severe of subject concerns.
2016-12-15 04:59:51 · answer #2 · answered by ? 4 · 0⤊ 0⤋