Answer: C
Explanation: The evidence that percentages of adenine and thymine are approximately equal and likewise that of cytosine and guanine. This is based on Erwin Charging's base composition studies. The DNA nucleotide are arranged as base with adenine on one strand forming double bonds with thymine on the complimentary strand likewise cytosine on one strand forms triple bond with guanine on the complementary
Answer;
-Glucose
An energy-rich organic compound needed by organisms is glucose
Explanation;
-Glucose is a simple sugar or carbohydrate that is used by the cell during cellular respiration to generate energy in the form ATP, which is the usable form of energy by the cells.
-Carbohydrates or sugars are energy-rich organic compounds made of carbon, hydrogen and oxygen. Plant cells store excess energy in molecules of starch, while animals store excess energy in molecules of glycogen.
Modern smog<span>, as found for </span>example<span> in Los Angeles, is a type of air pollution derived from vehicular emission from internal combustion engines and industrial fumes that react in the atmosphere with sunlight to form secondary pollutants that also combine with the primary emissions to form photochemical </span>smog<span>.</span>
