Amarine aquarium is found to contain a salt concentration of 40 ppt. how many grams of salt are in one liter of the solution?

Me with these questions image attached

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 role of dna ligase in the elongation of the lagging strand during dna replication?