Which is a major threat to biodiversity?
a. yucca moths pollinate and feed on yucca plants in the mojave desert.
b. non-native kudzu out-compete native plants in the eastern united states.
c. poison from the poison dart frog of the tropical andes may be used to create effective medicines that fight certain human diseases.
d. acacia trees of central and south america provide shelter for stinging ants, while the stinging ants remove fungal spores from the trees.