The submarine can freely dive and float in the water, which is the working principle of what organ of the fish is borrowed? This is the ant manor november 11th today manor small class questions, many users do not know the answer, this article will be for you to introduce in detail November 11 today ant manor classroom chicken feed answers.
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Ant Manor is very fun, raising chickens can also do charity at the same time, the recent knowledge quiz can also send free feed.
Today's questions are:
The submarine can freely dive and float in the water, which is the working principle of what organ of the fish is borrowed?
air bladder
fin
Answer: Fish maws
Answer analysis: The swim bladder in the fish can contract or expand under the control of the muscles. When the maw shrinks, the volume of the swim bladder becomes smaller, the gas inside it is discharged, the buoyancy of the water becomes smaller, and the fish sinks into the water, and vice versa. Inspired by this, people also installed a main ballast water tank similar to the tank of the swim bladder, and the submarine was floated by water injection and drainage.
Little friends go get the chicken feed!
That's the answer to the question in the Ant Manor Small Class on November 11.
Source: Minnan Network
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