The cane toad, or Rhinella marina, was introduced to the Hawaiian Islands in 1932 by sugar cane farmers. The farmers released the toads in their crops to help control pests that were damaging the sugar cane. The cane toad has few natural predators because it secretes a poisonous toxin that kills the animals that consume it. As a result, the cane toad population thrived, and by 1935, it numbered hundreds of thousands. Which role does the cane toad play in the Hawaiian Islands?
Which term refers to a change in one species that results from a change in another species that it interacts with?
Some flowering plants are pollinated by honeybees. At some time in the past, honeybees evolved the ability to see ultraviolet radiation. Some flowers have evolved to produce ultraviolet markers on their petals that direct honeybees to the reproductive parts of the flower. What is this an example of?
The pine borer beetle is a parasite to the pine tree. What would most likely happen to the pine tree population if the beetle population decreased?
Which is most likely to help an introduced species become invasive?
When an insect touches the bristles on the lobes of a Venus flytrap, the lobes close quickly, engulfing the insect. The movement of the insect inside the lobes causes the flytrap to secrete digestive enzymes that kill the insect. Which type of relationship does this describe?
As human travel increases, the number of introduced species likely
What is a snake that eats a mouse an example of?
A symbiotic relationship in which one species benefits and the other is harmed is known as
Why are invasive species dangerous to the environment?
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