What is true of macroevolution?

a. it is the same as microevolution, but includes the origin of new species.
b. it is evolution above the species level.
c. it is defined as the evolution of microscopic organisms into organisms that can be seen with the naked eye.
d. it is defined as a change in allele or gene frequency over the course of many generations.
e. it is the conceptual link between irritability and adaptation.

b. It is evolution above the species level.

Explanation:

Macroevolution is the evolution that generates new taxa, for examples two or more species from a common ancestor. Macroevolution is the product of microevolutionary processes, it is, of microevolution: the change in allele frequencies in a population over time.  Macroevolutive changes are commonly evident while not all microevlutive changes are not.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

a community that experiences major changes undergoes progress