Which of the following is the best description of the cane toad’s introduction to australia?
a.
it was a successful biological control mechanism for cane beetles.
b.
it was a failed biological control mechanism for cane beetles.
c.
it was a successful method for reducing freshwater crocodile populations.
d.
it was a failed attempt to eradicate south american fire ants.

b.  It was a failed biological control mechanism for cane beetles.

Explanation:

An invasive species is the one which is introduced either intentionally or accidentally into a new habitat is responsible for causing harm to the native species by competing it for resources.

A cane toad was an invasive species native to Florida and was introduce to Australia to get rid of cane beetles damaging the sugarcane crops.  These toads were capable to control the beetles to some extent but they became competitive with the native species. They were poisonous and were responsible for killing the other organisms of the native land.        

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.

b because they naturally adapt to their environment plz mark brainliest

explanation: