Methods of DNA typing for identity, parentage, and family relationships. RESTRICTION FRAGMENT LENGTH POLYMORPHISM (RFLP) ANALYSIS.
These organisms convert nitrogen in the soil to ammonia, which can then be taken up by plants. This process also occurs in aquatic ecosystems, where cyanobacteria participate. After nitrogen has been fixed, other bacteria convert it into nitrate, in a process known as nitrification.
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Answer:
- inheritable changes
- genetic
- generations
I don't know about the second sentence, is it possible you give me a bit more of a context then maybe i can be of help
I believe the answer is <span> A broad range of species existed</span>
