What do crabs use to breathe Crabs are a kind of crustaceans, which conform to the basic characteristics of crustaceans.For example, the way of breathing, crustaceans basically use gills to breathe, crabs also use gills to breathe.The gills of crabs are quite obvious on their bodies, which can be observed very clearly if you look carefully.Gills are distributed on both sides of their bodies, and those white filamentous things are their gills, which are more numerous.When crabs breathe, these filaments move slightly, and if they are in the water, we can see their breathing very clearly.
From the internal structure of crab gills, their gills are also distributed with some tiny blood vessels, so that when they breathe, oxygen in the water can enter these blood vessels.
As mentioned above, crabs breathe with gills, and they can breathe in the water.In fact, crabs can be said to be an aquatic animal, which can naturally breathe in the water.In fact, crabs not only breathe in the water, they also have a lot of activities in the water, such as predation, their main food is a variety of animals in water, fish, shrimp and mollusks may become crab food.
In fact, crabs can not only breathe in the water, they can also breathe on land for a period of time, because their shells can store some water, which can be used for them to breathe for a period of time.However, crabs can not stay in very dry places, nor can they stay on land for a long time, otherwise they may not be able to breathe smoothly.
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