explain the reason for the variation in production by referring to the possible causes for variation in a population

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

Is there any solid scientific evidence that humans have been cloned?

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure