Sharks, just like any other fish, develops gills to breath underwater. Their gills, act like a filter to filter out the oxygen with the water.
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Interest groups become involved in elections to influence Policymakers. They may contribute funds, make independent expenditures, advocate issues, and mobilize voters.
The European continent has the largest number of countries among the first in the measurements of the Human Development Index. This fact, a consequence of planning and high investments in the social area for decades.
The Human Development Index (HDI), Consists of the average obtained through the analysis of three factors: <u>Gross National Income (GNI)</u> per capita (calculated based on the purchasing power parity - PCC); <u>educational level of people</u> (average years of study of the adult population and expected number of years of study.); <u>population life expectancy</u> (life expectancy at birth).