Approximately 90 percent of Hawaii's plants are found nowhere else in the world but they are (57) _______ by alien invasive species such as feral goats, pigs, rodents
Approximately 90 percent of Hawaii's plants are found nowhere else in the world but they are (57) _______ by alien invasive species such as feral goats, pigs, rodents
A. guarded
B. invested
C. threatened
D. conserved