What visual you have evidence would he have to see on the microscope slides to support his claim: moving components
What would be the source of the bubbles? oxygen creation
Answer: Sequence of Amino acids
Explanation: The shape of a protein is determined by its primary structure (sequence of amino acids). The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
A constant variable would be an element that remains unchanged and constant throughout the course of the experiment / investigation.
It is geothermal because solar heat is in the air not underground