The cane toad was a failure as a biological control method in Australia because: -The greyback beetle it was supposed to be eating fed at the top of the sugarcane stalks (which were 6-8 meters in height). Cane toads cannot fly or climb and therefore couldnt feed on the beetles. -The beetles were out during the daytime, and cane toads feed at night. -The two species are not seasonally compatible (aren't in the same place at the same time of year). -The toads needed moist conditions to survive, and so moved away from where they were supposed to be. -The cane toad eats many native species and often out-competes native species for food and breeding sites, leading to the decline of natives. -Breeding habits made the cane toads a very invasive species.
The correct answer is...Once the enzyme binds to the specific substrate molecule, subtle structure changes occur in the active site, which are reverted when the reaction is over.
