Regulatory proteins in eukaryotes that are involved in controlling the onset of transcription are called
A operators
B enhancers
C exons
D transcription factors.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

true                                                                                                       true true true true true true

the answer is c on e2020, bud.