Most of the carbon cycle is run by two cellular organelles

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Question

1. Most of the carbon cycle is run by two cellular organelles: mitochondria and chloroplasts. Using what you know about the carbon cycle, explain why this is true.

2. Bacteria and fungi have a bad reputation because some types cause disease. Suppose someone who is afraid of germs tried to sanitize their entire yard, the soil included, and killed off nearly all of the bacteria and fungi. Describe all the ways that you can think of that their sanitized yard would be different from their neighbors' yards.

3. Trees are usually considered a renewable resource. The trunk of a tree contains large amounts of the nutrients that the tree has absorbed during its life, which are removed from the environment when the tree is cut. If trees are harvested, replanted, and harvested again relatively frequently (Douglas-fir can be ready for harvest within 30 years of replanting in commercial tree farms), what happens to the nutrient content of the soil over time? What would happen in a forest preserve, where no trees are cut, in the same amount of time? What does this suggest about maintaining the sustainability of tree farming over the long term?

4. Which nutrient cycles is garden compost a part of? Describe what part of the cycles are happening in a compost bin.

Reference no: EM133933748

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