Magine that, of three species, it is known that species 1 and 3 were separated 10 million years ago, based on geologic measurements. genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. if there are 10 substitutions separating species 1 and 2, approximately how long ago did these species diverge?

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

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so whats the answer