Help Me Pls ASAP Which of the following statements below are TRUE about Keystone Species?

Question 4 options:

If keystone species are removed, it can destroy the balance of the ecosystem.

There can be more than one keystone species within an ecosystem.

Keystone species have very little importance to the balance of an ecosystem.

One example of keystone species in the ecosystems stem case food web are bees because they pollinate the plants.

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.