What is the name of the person who uses fafnir

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

Which sets of mrna codons could genetically come for a protein with the following amino acid composition

Name the process by which soil is formed from rocks? ?