What characteristics describes an old river​

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

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Were you able to observe the nucleolus in any of the cells if so which ones