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What else can I help you with?
How have humans changed bat's population by disrupting its food chain or food web?
Well, it is either using fertiliesers/weed killers/pesticieds on the fruits they eat or deforestaion, they destroying of their habitat
What are arguments for and against free range farming?
Free-Range for - Space to roam freely, organic, no pesticieds used, higher quality produce. Against- More expensive, and hard to find open space for it
How might a natural pesticide help other organisms?
As far as ecological webs go, if you reduce the number of a species, other animals which that species fed on will thrive. Other animals which fed on the animal killed by the pesticide will not, quite the opposite in fact. Other than that, pesticieds aren't good. If toxins remain in an animal it will generally pass onto another which eats it. An ironic way of nature getting back at humans, if it goes all the way to us... It might also be a selective pressure for some fast reproducing species like bacteria, causing them to evolve.
