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Most of these animals, I think, is fish, the migratory fish. When they stay in freshwater they keep the mineral substance from the surrounding. By contrase, they extrete the salinity and keep water when they ger into sea water.

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13y ago

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What body of water requires animals to adapt to both salt and fresh water?

Estuaries are bodies of water where rivers meet the sea, creating a mix of saltwater and freshwater. Animals in these environments have to adapt to fluctuating salinity levels, making them capable of handling both salt and fresh water conditions. Examples of animals found in estuaries include crabs, oysters, and fish like salmon.


Can salmon survive in freshwater environments?

Yes, salmon can survive in freshwater environments as they are able to adapt to different salinity levels throughout their life cycle.


Why do Fish living in estuaries have a wide tolerance range for salinity?

Fish living in estuaries have a wide tolerance range for salinity because estuaries have fluctuating levels of salinity due to the mixing of freshwater and saltwater. This variability in salinity selection allows the fish to adapt and thrive in changing conditions. Additionally, estuarine fish have evolved physiological adaptations, such as specialized kidney function, to regulate their internal salt levels.


How do animals adapt in the epipelagic zone?

The epipelagic zone is uppermost part of the oceanic zone to allow for photosynthesis. Animals and life in this region must adapt to lower levels of sunlight and reduced oxygen use.


Which animals have the remarkable ability to adapt to any environment?

Certain animals, such as rats, cockroaches, and some species of birds, have the remarkable ability to adapt to various environments due to their flexible behaviors and physiological characteristics.


How do organisms adapt to survive in environments with a mix of salt and freshwater?

Organisms adapt to survive in environments with a mix of salt and freshwater by developing specialized physiological mechanisms, such as osmoregulation, to maintain the balance of salt and water in their bodies. This allows them to thrive in varying salinity levels and avoid dehydration or overhydration.


What is a predator of a rock pool?

It needs to be able to adapt to sudden changes in temperature and salinity.


What animals that adapt to different biomes?

animals adapt to differents biomes because


What conditions do animals that live in fresh water ecosystems have to adapt to?

Animals in freshwater ecosystems must adapt to variations in water temperature, oxygen levels, and salinity, as freshwater environments can fluctuate significantly. They often develop physiological mechanisms to regulate their internal salt balance, as they are surrounded by water that is less saline than their body fluids. Additionally, adaptations for coping with variable water flow and sediment conditions are crucial for survival, influencing feeding strategies and reproductive behaviors. These adaptations help them thrive in diverse and dynamic habitats.


What is the most significant challenge for organism that live estuaries?

changing in Water Salinity.


The large amount of salt in the air and water of coastal areas determines which species can exist there?

Yes, high salt levels in coastal environments create selective pressure on species that can tolerate or adapt to these conditions. Organisms that have adapted mechanisms to regulate their internal salt levels, such as marine animals and halophytic plants, are better suited to thrive in these habitats compared to species that cannot tolerate high salinity.


How do animals adapt and change?

Animals change and adapt through evolution by natural selection.