Which of the following is a correct representation of secondary succession?

A. bare rock -> lichens + mosses -> grass -> shrubs -> trees

B. trees -> shrubs
-> flowers -> grass

C. soil -> grass -> shrubs -> trees

D. grass -> bare rock -> soil -> trees

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations