Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both.
Eutrophication can be a natural process in lakes, occurring as they age through geological time.
Eutrophication was recognized as a pollution problem in European and North American lakes and reservoirs in the mid-20th century.
Human activities can accelerate the rate at which nutrients enter ecosystems.
According to this dichotomous key, any catfish must be leathery, that is, without scales. They have a flattened body, as in most fish with benthic habits, that is, they live at the bottom of the waters. Coloration varies from bluish gray to yellow. It can reach 1 meter in length and weigh about 5 kilos.
<h3>What is catfish?</h3>
Catfish and catfish are common designations given to fish of the order Siluriformes in most of South America.About 2,200 species of these fish are known, classified into almost 40 families (only two, Ariidae and Plotosidae, have marine species). They are found almost all over the world, but more than half of the known species are native to South America.
With this information, we can conclude that the catfish (Ictaluruspunctatus) is a representative fish of the order Siluriformes, family Ictaluridae, characterized by not having scales.
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Answer: Our bodies stay fresh for a short period time, then enter <em>rigor mortis</em>, then began the slow process of decomposition.
Explanation:
Answer:
Total of 
kilo-calories are consumed.
Explanation:
In order to determine the total calories present in any food item, the calories contribution of each of its constituents must be know.
Here,
Calories in one gram of carbohydrate 
kilocalories
Calories in one gram of protein kilocalories
Calories in one gram of fat 
kilocalories
As per the details provided on Coca-Cola website, calories in 16-ounce cola 
calories 
kilocalories
Thus, total calorie in an entire bag of potato chips and 16-ounce cola
Total of kilo-calories are consumed.
If bats<span> were to </span>go extinct<span>, farms could lose close to $3.7 million</span>
