Which of the following examples poses the greatest potential threat to an ecosystem’s biodiversity? a) Abandoned farmland is allowed to go fallow and begins to fill in with weeds, shrubs, and saplings.
b) A nonnative species of bee is introduced to prey on the introduced species of fire ants in the Southern United States.
c) A monoculture of fir trees is planted on land that was once clear cut from deforestation.
d) The trapping and relocating of wolves poses a threat as they move into areas of high human population.

Can someone pretty me with this ? it’s urgent.compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( “ i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.

What is the most common structure of volcanoes?

Which factor most likely caused animals and plants in india to differ greatly from species in nearby southeast asia?