Enzymes work by a. lowering the energy needed to break bonds b. making reactants water-soluble c. adding heat to reactant molecules in solution d. increasing the speed of electrons

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

What occurs to the cell during mitosis

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