Answer:
Fishes have a very particular respiratory system, which manages to extract the dissolved air from the water. They do it thanks to the gills, membranes located on the sides of their body. When the animal opens and closes its mouth, the liquid enters its interior through them and that is when the blood vessels absorb the necessary oxygen. If the water has toxic components or dirt, there will not be the necessary amount of oxygen.
Explanation:
Fishes obtain the oxygen they need from the water through the gills: membranous structures supported in turn by cartilaginous or bone structures. The gill surfaces are very wide, and respiratory gases are exchanged between blood and water as it flows over them. The fish takes water through its mouth and, through a complex process, releases the water through the lids, previously passing through the lamellae, where oxygen is captured. If the water has toxic components or dirt, there won’t be the necessary amount of oxygen, there would be impurities that limit oxygen. Pollution causes the loss of oxygen. Efficient oxygen absorption from water (as gills do) is essential for active organisms in the aquatic environment. Fishes promote gas exchange by ventilating the gill surfaces, either by actively pumping water through the gills, or by continuously swimming with their mouths open. In the end, the fish die because they cannot find what they need to live.
According to the type of task, there shoud be some options to choose. I can help you, but next time check it carefully. Here are all the apossible products of meiosis in plant and animal life cycles : <span>gametes and spores.
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Answer:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
Explanation:
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The answer is True.
<span>Nasal concha is a long, curled bone which formes the upper chambers of the nasal cavities. It increases the surface area of these cavities and regulates the mechanism of breathing. Nasal concha has a possibility to direct the inspired air and thus increase the number of scent molecules to the olfaction receptors.</span>
