The steppes in South America are mostly found in the central part of the continent, south from the Amazon basin, and smaller area of steppes occupy part of the northern part of the continent.
The steppes in South America are mostly located on the territories of Brazil (the southern part of the country), Argentina (the northern part of the country), Uruguay, and Paraguay, so they are the dominant landscape in the central part of the continent. There are smaller areas occupied by steppes in the northern part of the continent, in Colombia and Venezuela. The steppes are mainly used by the people for the grazing of the livestock.
About 90% of the energy is lost to heat moving up one trophic level. Only 10% actually makes it to the next organism. Assuming the chain goes produce, primary consumer, secondary consumer, humans receive about 1% of the original energy from the cow’s food.
Enzymes are biological catalysts. Substances that increase the rate of chemical reactions without being used up, through lowering activation energy of the reaction. Enzymes are basically proteins folded into complicated shapes that allow small molecules to fit in them.
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Answer:
ATP
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Answer:
A DNA molecule has two paired strands.