If surveys.csv, species.csv, and plots.csv are not available in your workspace download them:
Load them into R using read.csv().
inner_join() to create a table that contains the information from both
the surveys table and the species table.inner_join() twice to create a table that contains the information from
all three tables.inner_join() and filter() to get a data frame with the information
from the surveys and plots tables where the plot_type is Control.