A "Green Warrior" notices a new type of fast-growing weed in the local park that is killing all the native flowers. This is called an "Invasive Species." Why are these species so dangerous?
(A) They are usually poisonous to touch.
(B) They have no natural predators in the new area, so they grow out of control and steal all the light and water.
(C) They only grow during the night when people are sleeping.
(D) They turn the soil into plastic.