Final answer:
Clownfish, like the one Zara chose, are saltwater fish. In terms of diffusion and osmosis, Zara needs to understand the importance of maintaining a proper salinity in the tank water, testing the water quality regularly, and providing a varied diet for her clownfish.
Step-by-step explanation:
Clownfish, like the one Zara chose, are saltwater fish. As such, it is important for Zara to understand the concepts of diffusion and osmosis in order to properly care for her new pet.
Diffusion is the movement of solute molecules from an area of higher concentration to an area of lower concentration. In the case of a clownfish in a tank, there may be differences in the concentration of solutes, such as ions, between the tank water and the fish's body fluids. This can lead to a process called osmoregulation.
Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Clownfish have a specialized structure called a gill that allows them to exchange gases and regulate water and ion balance. The gill membrane is selectively permeable, meaning it allows water to pass through but not larger solute molecules.
Zara should ensure that the tank water has the appropriate salinity to mimic the natural habitat of a clownfish. This will help maintain a balance between the fish's body fluids and the surrounding water. She should also regularly test the water quality, including pH levels, ammonia levels, and nitrate levels, to ensure a healthy environment for her pet. Additionally, Zara should provide a varied diet for her clownfish to ensure they receive all necessary nutrients.