Nitrogen is found in the Raindrops bring nitrogen to the ground. Nitrogen-fixing bacteria add to nitrogen and form ammonium. Nitrifying bacteria then add to the ammonium to form nitrites. They add more oxygen to the nitrites to form Plants can use nitrates. Eat plants, they can use the in the nitrates

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

What is the key to the recognition of codominance?

When a plant is genetically identical to its parent plant what is this called