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  1. R

    What are the immediate effects of exercise in the circulatory system?

    The heart rate at rest is about 60-80 depending on fitness levels, the immediate effects are the heart rate increases, breathing rate increaes, body gets warmer.
  2. R

    How does global warming affect biodiversity?

    Theres a random selection of stuff on the tinterweb, but it basically talks about either one or the other, i need info on both aspects, how does global warming affect biodiversity on earth?
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