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Homogeneous is the answer
Answer:
Land can become polluted by household garbage and by industrial waste. In 2014, Americans produced about 258 million tons of solid waste, according to the U.S. Environmental Protection Agency. A little over half of the waste — 136 million tons— was gathered in landfills. Only about 34% was recycled or composted.
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Like DNA, RNA polymers are make up of chains of nucleotides. The sugars they are made up of; a five carbon ribose sugar.
Or Pentose Sugar.
Answer:
Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.