Product differentiation: group of answer choices a. is successful if a firm faces a relatively inelastic demand curve. b. cannot be accomplished through advertising or trivial product changes. c. is carried out by both perfectly competitive and monopolistically competitive firms. d. if carried out successfully enables the firms to enjoy market power. e. does not allow the firm to raise its price without losing all of its customers.

The genetic code is essentially the same for all organisms. based on this information, one can logically assume which of the following statements to be correct? a. dna was the first genetic material. b. the same codons in different organisms translate into the different amino acids. c. different organisms have different numbers of different types of amino acids. d. a gene from an organism can theoretically be expressed by any other organism. e. all organisms have experienced convergent evolution.