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Can a crab breathe in the water? What organ does it breathe?

Lydia Rodarte-Quayle
2020-09-25 04:09:40
Crabs can breathe in the water, and they can breathe freely at any time. They can breathe in water because their respiratory organs are gills rather than lungs. Their gills are distributed on both sides of their body, and those white filaments are their gills. When crabs breathe, water flows through their gills, and dissolved oxygen in the water enters the tiny blood vessels in the gills and is transported to all parts of the body.
Can a crab breathe in the water? What organ does it breathe?

1. can crabs breathe in the water?

Crab is a crustacean, from the point of view of living environment, crabs live in the water.Although different species of crabs live in different waters, some live in seawater and some live in freshwater, they spend most of their time in the water.Therefore, there is no doubt that they can breathe water.This is because the crab's respiratory organs are gills.Crabs, as crustaceans, also conform to the basic characteristics of crustaceans breathing with gills.Crabs have the same respiratory organs as fish and can breathe freely in the water.Therefore, most of the activities of crabs are carried out in the water.

In fact, crabs can not only breathe in the water, but also breathe on land for a period of time.This is because crabs can store some water in their shells, which can supply them with breathing time on land.However, if crabs go to land, they usually do not go to particularly dry places, otherwise they will hinder their breathing.And generally speaking, they can't stay on land for too long, because the stored water will slowly evaporate, and they can't breathe without water.

2. what organs do crabs rely on to breathe

As mentioned above, crabs can breathe in the water, because the respiratory organs used by crabs are gills, so they can breathe more freely in the water.The gills of crabs are more obvious, just on the sides of their bodies, are white filaments, as soft as sponges.When crabs breathe, water enters their bodies from the back, and the dissolved oxygen in the water enters the tiny blood vessels in their gills, so they can breathe smoothly.

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