Explain the role of the various organelles within in the eukaryote cells

Which of the following descriptions of proteins are true? i. proteins can have different sequences of amino acids. ii. proteins can have different shapes. iii. proteins can have different numbers of amino acids. a. only i and ii are true. b. only ii and iii are true. c. only i and iii are true. d. i and ii and iii are all true. e. none are true statements

Could someone me with number one you

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?