What’s a claim ? I don’t know what to write for the claim . I need help please. It’s for biology class ( no links aloud )

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

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

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis