Frieda is developing a computer model of mutations in human DNA. She plans for the model to incorporate one point mutation for every 10 million base pairs of DNA, which is a rate that is supported by her research. However, her advisor argues that mutations could occur 100 times more frequently under certain circumstances.
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This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.