In the nutrient cycle bacteria that live on the roots of plants a. break down nitrogen compounds into nitrogen gas b. denitrify nitrogen compounds c. change nitrogen gas into plant proteins d. change nitrogen gas into ammonia

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics