Building data frames from vectors (dplyr)

You have data on the length, width, and height of 10 individuals of the yew Taxus baccata stored in the following vectors:

length <- c(2.2, 2.1, 2.7, 3.0, 3.1, 2.5, 1.9, 1.1, 3.5, 2.9)
width <- c(1.3, 2.2, 1.5, 4.5, 3.1, NA, 1.8, 0.5, 2.0, 2.7)
height <- c(9.6, 7.6, 2.2, 1.5, 4.0, 3.0, 4.5, 2.3, 7.5, 3.2)

Make a data frame that contains these three vectors as columns along with a genus column containing the name Taxus on all rows and a species column containing the word baccata on all rows.

Expected outputs for Building data frames from vectors: 1