Human influence on animals. Features of the structure of systems of internal organs of the body

Human influence on animals. Features of the structure of systems of internal organs of the body of fish and their functional significance.

Man has a strong influence on various animals. We become the cause of the extinction of some species, since various biogeocenoses disappear due to our vital activity, the environment is polluted, and so on. But this is not always a negative impact. Thanks to man, there is a natural selection of animals, which contributes to the evolutionary process.
Fish have a swim bladder in their structure, which allows them to be at a certain depth. Also, fish are characterized by a lateral line, which is a sense organ.