Why are invasive species considered a threat to native wildlife? a. they can breed and spread quickly. b. they consume native species’ food supply. c. they evolve, and native species don’t. d. they all have higher genetic diversity than native species. e. they don’t need resources from the environment as native species do.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying