Answer:
To avoid Hyper-oxygenation
Explanation:
Crucian carp have the ability to increase gill surface to maximize oxygen intake, or reduce overall area when under specif circumstances. If the fish does not need so much oxygen it will cover the protruding lamellae to reduce oxygen intake and avoid Hyper-oxygenation.
The form of exchange that is most commonly used in the United States today is option B. balanced reciprocity. The balanced reciprocity refers to the exchange of something with the expectation that another of same value will be returned within a certain time frame.
<h3>What is reciprocity?</h3>
In cultural anthropology, reciprocity means the non-market exchange of goods or labour ranging from direct barter (immediate exchange) to forms of gift exchange where a return is eventually expected (delayed exchange) as in the exchange of birthday gifts.
Therefore, the correct answer is as given above.
learn more about balanced reciprocity: brainly.com/question/15558265
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There are four main types of unemployment in an economy—frictional, structural, cyclical, and seasonal—and each has a different cause. Frictional unemployment. Frictional unemployment is caused by temporary transitions in workers' lives, such as when a worker moves to a new city and has to find a new job.
Answer:
<h3>The major social problems prevailing in my society are: </h3><h3>1) Child marriage</h3><h3>2) Dowry system</h3><h3>3) Untouchability</h3><h3>4) Dowry system</h3><h3>5) Superstition</h3><h3>6) Robbing</h3><h3>7) Alcoholism</h3><h3>8) Drug abuse</h3><h3>9) Gambling</h3><h3>10)Human trafficking</h3><h2> The measures to solve these problems are:</h2><h3>1) Education should be compulsorily be provided to all.</h3><h3>2) Awareness Programme should be done.</h3><h3>3) Strict rules and laws should be implemented.</h3><h3>4) Government should do something to decrease Poverty in country</h3><h3>5) Providing job opportunities to the people </h3>
<h2><em>Hope</em><em> this</em><em> </em><em>will </em><em>help</em><em> you</em><em> </em><em>alot:</em><em>)</em></h2>
