Which of the following is true about an invasive species? choose all that apply. a. they can crowd out native species b. they are beneficial to the environment. c. they can change entire habitats. d. they can cause unnatural competition.

It could either be D or A,but most likely D

A. They can crowd out native species 
C. They can change entire habitats
D. They can cause unnatural competition 

B. Is stated as incorrect because of invasive species having a neggative impact on the environment

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